DUASO MULTIPLE CHOICE

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. Kennedy keys are also known as a) Tangential keys b) Normal keys c) Saddle keys d) Roll Pin

. The frictional forces depends on coefficient of friction and a) torque b) weights of object c) normal of force d) moment

1. A shaft that is used to connect or disconnect at will is called: A. Clutch B. Bearing C. Brake Shaft D. Lock Shaft

1. Helical gears mounted on non- parallel shafts are called _____ A. Open gear B. Crossed helical gear C. Closed helical gear D. Herringbone gear

1. One of the causes of spur gear tooth breakage is the unbalanced load on one end of breakage is the unbalanced load on one end of the tooth that results in the higher stress than when the load is evenly distributed. To minimize this problem, the face width "b" should not be greater that the thickness of the tooth. In the absence of test values, the following can be guide. a. 2.5 Pc < b < 4 Pc b. 2.0 < b < 4 Pd c. 2.5 Pd < b < 4 Pd d. 2.0 Pc < b < 4 Pc

10. Straight and zerol bevel gears should not be sued when the pitch line velocity is greater than: A. 800 rpm B. 850 rpm C. 875 rpm D. 900 rpm

11. Intermediate gear is also called ____ gear in a gear train engagement. A. Idler B. Pinion C. Third gear D. Mounted gear

11. The maximum compressive stress within the contact area between mating gear tooth profiles is called: a. Bearing stress b. Contact stress c. Ultimate stress d. Internal stress

11. The spiral bevel gears are recommended when the pitch line speed exceeds: A. 1000 fpm B. 1100 fpm C. 1500 fpm D. 2000 fpm

11. The width of tooth measured along the pitch circle. a. Tooth space b. Tooth thickness c. Backlash d. Tooth face

11. What bearing composed of two principal parts, namely the A. Bearing and journal B. Clearance and fitted C. Bolt and Babbitt D. Bolt and cylinder

12. A circle coinciding with a tangent to the bottom of the tooth space A. Root circle B. Pitch circle C. Addendum circle D. Dedendum

12. A type of spring where thin flat strip wound up on itself as a plane spiral, usually anchored at the inside A. Volute spring B. Motor spring C. Hair spring D. Garter spring

12. An arbitrary modification of a tooth profile whereby a small amount of material is removed near the tip of the gear tooth. a. Chamber b. Tip relief c. Under cut d. None of these

12. The curve formed by the path of a point on a circle as it rolls a straight line. a. Trochoid b. Epicycloid c. Hypocycloid d. Cycloid

15. Addendum of a cycloidal gear tooth A. Cycloid B. Epicycloid C. Straight Rack D. Involute

15. An elastic stored energy machine element that when released, will recover its basic form A. Flywheel B. Clutch C. Brakes D. Spring

16. Clutch gear box, differential etc. are the parts of: A. Charging system B. Transmission system C. Cooling system D. None of these

16. Length-diameter ration was a good compromise for the general case of hydrodynamic bearings. It is approximately equal to A. 1 B. 2 C. 3 D. 4

16. _____ gear with teeth spaced along a straight and suitable for straight line motion. a. Helical b. Bevel c. Rack d. Worm

17. For equalizing the rotation of two gears, a gearbox employs" A. Dog and clutch B. Crown gear C. Star pinion D. None of these

17. In involutes teeth, the pressure angle is often defined as the angle between the line of action and the line of tangent to pitch circle. It is termed as: A. Helix angle B. Angle of recess C. Angle of obliquity D. Arc of action

18. At higher temperature, the oil oxidizes more rapidly above A. 120F B. 140F C. 160F D. 200F

18. If the ends are joined by wire lacing with machine, the usual efficiency of joint is: A. 75% B. 85% C. 88% D. 100%

18. In a constant mesh gearbox, all the speed gears remain: A. Separate B. Joined to their couple C. Of the same measurements D. None of these

18. The majority of coils springs are made of coil tempered carbon steel wire containing ______________ carbon. A. 0.30 to 0.40% B. 0.40 to 0.50% C. 0.50 to 0.60% D. 0.60 to 0.70%

18. The portion of a gear tooth that projects above or outside the pitch circle A. Top Relief B. Dedendum C. Addendum D. Tooth Space

18. The reciprocal of a diametrical pitch or the ratio of pitch diameter to number of teeth is called: A. Lead B. Module C. Involute D. Clearance

19. Experimental results indicate that the actual frequency of the spring is from A. 5 to 10% B. 10 to 15% C. 15 to 20% D. 20 to 25%

19. For spur gear, the speed ratio is customary to limit the reduction of: a. 3:1 b. 4:1 c. 5:1 d. 6:1

23. Refers to the smallest wheel of a gear train A. Pinion B. Idler C. Spur D. Driver

24. Spiral Gears are suitable for transmitting: A. Small power B. Any power C. Huge power D. Pulsating power

24. The actual torque of a gear set divided by its gear ratio. a. Coefficient of performance b. Transmission ratio c. Ratio factor d. Efficiency

24. The standard pressure angle for fine pitch gears is ______ gears and is recommended for most applications A. 14.5 degrees B. 16 degrees C. 20 degrees D. 21 degrees

27. According to the law of gearing: A. Teeth should be involute type B. Clearance between mating teeth should be provided C. Dedendum should be equal to 1.57 M D. None of these

28. Helix angles of _____ degrees are preferred for double helical gears. a. 15 and 25 b. 20 and 30 c. 25 and 40 d. 30 and 45

28. If P = bearing pressure on projected bearing area, Z= absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by A. ZN/P B. Z/ PN C. ZP/ N D. P/ZN

28. It offers long life, high efficiency and low cost and low maintenance A. Flat belt B. V-belt C. Tooth belt D. All of these

3. Bevel gear teeth are built with respect to a ____ rather than to a pitch cylinder as ion spur gears. A. Pitch pedal B. Pitch profile C. Pitch cone D. Cylinder

30. In oiless bearing A. The oil film pressure is produced only by the rotation of the journal B. The oil film I maintained by supplying oil under pressure C. Do not need external supply of lubricant D. Grease is needed to be applied after some intervals

30. In the mechanical brake system, the main function is of: A. Spring B. Cam C. Shoe adjuster D. Shoe rivets

30. It is standard practice to assume that the thickness of the tooth measured around the pitch circle is exactly _____ of a circular pitch. a. One-fourth b. One-half c. One-third d. Two-third

30. The concave portion of the tooth profile where it joins the bottom of the toot space. a. Toot curve b. Involute c. Fillet radius d. Fillet curve

30. Which of the following does not belong to the group? A. Tooth scoring B. Tooth breakage C. Pitting D. Toughing

31. A shaft rotating in anticlockwise direction at slow speed inside a bearing will be A. At bottom most of bearing B. Towards left side of bearing and making metal to metal contact C. Towards left side of bearing and making no metal to metal contact D. Towards right side of bearing and making no metal to metal contact

31. In case of spur gears, the flank of the tooth is: A. The part of the tooth surface lying below the pitch surface B. The curve forming face and flank C. The width of the gear tooth measured axially along the pitch surface D. The surface of the top of the tooth

33. The outside diameter of the worm gear measured on the central plane. a. Addendum diameter b. Throat diameter c. Pitch diameter d. Root diameter

33. The part of a shaft or crank which is supported by and turns in bearing. A. Casing B. Bushing C. Roller D. Journal

33. The surface of the tooth between the pitch and root cylinders. a. Fillet b. Face c. Flank d. Bottom land

33. There are ______ plates in a multi- plate clutch A. More than one B. Less than four C. More than ten D. Less than one

34. Initial tensions should range from ___ for leather belts and 10 to 12 lb/ply per inch of width for rubber belts A. 200 to 240 psi B. 220 to 260 psi C. 240 to 280 psi D. 260 to 300 psi

34. The _____ full depth teeth have the advantages of the greater capacity and less interference trouble. A. 14.5o B. 24o C. 20o D. 30o

34. The circumference of a coil spring times the effective number of coils is called A. Active length B. Solid length C. Compressed length D. Operating length

34. The hardness of helical and herringbone gear teeth after heat treatment is 210 to 300 Brinell Hardness, for gear and pinion is at: A. 360 Brinell minimum B. 400 Brinell maximum C. 340 - 350 normal D. All of these

34. The number of teeth in the gear divided by the number of teeth in the opinion. a. Ratio factor b. Gear ratio c. Transmission ratio d. None of these

34. When an excitation frequency coincides with a natural frequency, this is known to be: A. Unity B. Resonance C. Obliquity D. Sinusoidal

35. For spring subjected to light service, the factor of safety __________ is suggested A. 1.5 B. 2.0 C. 2.5 D. 3.0

35. The average tooth stiffness constant of face is usually: A. 1.5 to 2 psi B. 3 to 6 psi C. 3 to 4 psi D. 7.5 to 10 psi

35. The axes intersect and the teeth are curved and oblique is called: a. Skew bevel gears b. Straight bevel gears c. Spiral bevel gears d. Zerol bevel gears

36. A type of gear of non-parallel and nonintersecting and the teeth are straight. a. Hypoid gears b. Skew bevel gears c. Spiral bevel gears d. Zerol bevel gears

36. The service factor of a gear may be taken as ____ _is an electric motor drives a centrifugal blower A. 1 B. 2 C. 3 D. 4

36. When it rolls along the inner side of another circle, it is called: a. Cycloid b. Epicycloid c. Hypocycloid d. Trochoid

36. When the number of teeth in a pair of meshing gears are such that they do not have a common divisor. A. Dummy B. LCD C. Add it D. Hunting

36. Which clutch is suitable for mine hoists and other services where heavy loads are accompanied by severe shock? A. Band clutch B. Block clutch C. Centrifugal clutch D. Expanding ring clutch

36. _______ is the angle at the base cylinder of an involute gear that the tooth maxes with the gear axis A. Base Helix Angle B. Pressure Angle C. Arc of Recess D. Arc of Approach

37. For worm gears, Buckingham recommends face width. a. 0.2 Dwo b. 0.3 Dwo c. 0.4 Dwo d. 0.5 Dwo

37. It is used to protect a machine in case of jamming and for overload protection of motors and engine A. Dry fluid clutch B. Magnetic clutch C. Eddy clutch D. Slip clutch

37. The kind of a wear occurs because of a fatigue failure of the surfaces material as a result of high contact stresses is known as: A. Slotting B. Pitting C. Involuting D. Curving

37. The operation of enlarging a hole by means of an adjustable cutting tool with only one cutting edge. A. Drilling B. Broaching C. Milling D. Boring

38. The combined effect of many of the variables involved in the operation of a bearing under hydrodynamic lubrication can be characterized by the dimensionless number called: A. Reynolds Number B. Prandtl Number C. Grashof Number D. Sommerfeld Number

38. Which type of chain is used in motorcycle? A. Bush roller B. Pintle C. Silent D. None of these

38. Zerol bevel gears angle should have a pinion either not less than: A. 15 teeth B. 16 teeth C. 17 teeth D. 18 teeth

39. It exits primarily to guide the motion of a machine member without specific regard to the direction of load application. A. radial bearing B. Journal bearing C. Thrust bearing D. Guide bearing

39. The curve formed by the path of a point on a straight line called their generatrix, as it rolls along a convex base curve. a. Involute b. Cycloidal c. Cycloid d. Trochoid

39. The length of arc between the two sides of a gear tooth on the pitch circle. A. Circle Thickness B. Axial Plane C. Helix Angle D. Chordal Curves

39. The minimum number of teeth on the smaller sprocket for low speeds is: A. 12 B. 14 C. 16 D. 18

40. Any plane perpendicular to a gear axis is called: a. Transverse axis b. Conjugate axis c. Plane rotation d. Axis of rotation

40. Arc of the pitch circle through which a tooth travels from the first point and contact with the mating tooth to the pitch point is called: A. Arc of contact B. Arc of approach C. Arc of recess D. Arc of action

40. If the angle of contact is ______, the pressure between the brakes shoe and the drum cannot be considered uniform: A. Less than 45 deg B. Less than 60 deg C. Greater than 60 deg D. Greater than 120 deg

40. It carries a load collinear to the axis of possible rotation of the supported member. A. Guide bearing B. Journal bearing C. Thrust bearing D. Radial bearing

40. The device for smoothing out the power impulses from the engine is known as A. Clutch B. Flywheel C. Gearbox D. Differential

42. The product of length and diameter of the bearing is called: A. Shearing area B. Compressive area C. Projected area D. Cross-sectional area

42. The recommended coefficient of fluctuation of flywheels for punching, shearing, and pressing machine is A. 0.05 to 0.10 B. 0.03 to 0.05 C. 0.002 to 0.005 D. 0.01 to 0.02

42. The surface between the flanks of adjacent teeth. a. Bottom land b. Top land c. Pitch surface d. Space width

42. ______ is one in which angle is 90 degrees that is the pitch cone has become a plane A. Crown Gear B. Angular Gear C. Miter Gear D. Spiral Gear

5. The length of coil sprig under no load. A. Compressed length B. Free length C. Solid height D. None of these

5. The part of an automobile disc clutch that presses against the flywheel is referred to as: A. Contact plate B. Friction plate C. Pressure plate D. Sliding plate

50. A gear wheel with cured teeth that mesh with a worm. a. Worm wheel b. Rack gear c. Spiral gear d. Herringbone gear

50. The operating temperature of the Babbitt is limited to A. 200°F B. 300°F C. 400°F D. 500°F

50. The space between the adjacent teeth is called: A. Tooth B. Flank C. Backlash D. Width

A _________ is formed when a shaft rotates in a bush, lines of the bore of a housing. A. Ball bearing B. Roller bearing C. Plain bearing D. Needle Bearing

A brazed joint is ___ soldered joint. a) Stronger than b) The same strength as c) Three times as strong as d) Weaker than

A cam where the follower reciprocates or oscillates in a plane parallel to the axis of the cam is called: a) circular cam b) cylindrical cam c) reciprocating cam d) tangential cam

A file whose edges are parallel is known as A. Crochet file B. Cross cut file C. Equaling file D. Blunt file

A flat-ended twist drill designed to convert a cone at the bottom of a drilled hole into a cylinder is called A. Churn drill B. Core drill C. Bottoming drill D. Spiral drill

A flexible back hacksaw blade is one that has A. A movable back B. Flexible ends C. Only the back hardened D. Only the teeth hardened

A hacksaw blade with 34 teeth per inch should be used for cutting A. Brass B. Cast iron C. Heavy D. Thin wall tubing

A hacksaw blades with 18 teeth per inch is best suited for cutting A. Aluminum B. Cast iron C. Solid iron D. Any of these

A kind of stress that is caused by forces acting along or parallel to the area is called a) Bearing stress b) Shearing stress c) Tangential stress d) tensile stess

A large wood screw is used to fasten machinery and equipment to a wooden base. a) Lag screw b) Log screw c) Wood screw d) None of these

A machine element inserted at right angle to the axis shaft is known as A. Fastener B. Cotter C. Key D. Clamp

A machine element inserted parallel to the axis of a shaft A. Fastener B. Cotter C. Key D. None of these

A machine member employed at the interface of a pair of mating male and female circular cross-sectioned members to prevent relative angular motion between these mating. a) Key way b) Key c) Constant key d) Variable key

A machine that makes gear teeth by means of a reciprocating cutter that rotates slowly with the work. a. Gear forming b. Gear hobber c. Gear shaper d. Gear cutter

A machine tool in which an abrasive wheel is used as cutting tool to obtain a very smooth finish. A. Broaching Machine B. Planer C. Tool Grinder D. Milling Machine

A machine tool used principally to machine flat or plane surfaces with a single pointed tool A. Shaper B. Planer C. Drill D. Power Saw

A machine tool used to out metal parts a lift, medium and large section using a reciprocating hacksaw blade. A. Tool Grinder B. Shaper C. Planer D. Power Saw

A machine tool used to produce a variety of surfaces by using a circular type cutter with multiple teeth called: A. Lathe Machine B. Milling Machine C. Broaching Machine D. Grinding

A material best suited for manufacturing of fuse wire A. Aluminum B. Silver C. Lead D. Copper

A material commonly used for shielding or screening magnetism A. Brass B. Copper C. Aluminum D. Soft iron

A mechanical mixture of very pure iron and a silicate slag A. Bronze B. Brass C. Cat Iron D. Wrought Iron

A mechanism, which usually do the indexing in a machine tool called: A. Slotter B. Chuck C. Dividing Head D. Indexer

A mechanism, which usually do the indexing in a machine tool is called: A. Universal chuck B. Slooter C. Dividing head D. Indexing

A metal which has a high electrical conductivity but should not be used for high temperature. A. Silicon B. Zinc C. Chrome Alloy D. Carbide

A metallic element and only metal that is liquid at ordinary temperature. A. Aluminum B. Mercury C. Zirconium D. Zinc

A method of resistance welding in which the heating and the pressure are localized at specified points by providing embossed or coined projections on the pieces to be joined. a) Projection welding b) Flash welding c) Seam welding d) Resistance welding

A multi pointed hand anything tool used to remove material from metallic non- metallic work places to match withdrawing shape and size A. Cold chisel B. File C. Hacksaw D. none of these

A portable sanding tool having a power-driven abrasive coated continuous belt is called A. Bench sander B. Belt heightener C. Gear sander D. Belt sander

A scriber is made of A. Carbon steel B. Cold-rolled steel C. Hot-rolled steel D. Tool steel

A section in a machine shop operation is called: A. Core making B. Machining C. Fitting D. Pattern

A shaft revolving in a bearing forms a a) Cylindrical pair b) higher pair c) lower pair d) sliding pair

A sharp pointed steel tool used to scribe lines on metal being laid out. A. Divider B. Scriber C. Trammel D. Hermaphrodite caliper

A silver refers to A. The pointed location spot silver plated. B. The point on an instrument dial a reading beyond which may be dangerous for the system. C. The temperature at which silver melts. D. The temperature of equilibrium between solid silver and liquid silver at normal atmospheric pressure.

A simply supported beam has a uniformly distributed load on it, the bending moment is a) triangle b) parabola c) semi-circle d) rectangle

A slider crank chain is made up of a) one turning and one sliding pair b) one turning and two sliding pairs c) two turning and one sliding pair d) three turning and one sliding pair

A specimen is subjected to a load. When the load is removed, the strain disappears. From this information, which of the following can be deduced about this material? a) It is elastic. b) It is plastic. c) It is has a high modulus of elasticity. d) It is ductile.

A surface to be soldered should be prepared by a) Acid cleaning the surfaces b) Filing the surfaces c) Scraping the surfaces d) Any of the above

A surfacing method of blasting particles of tungsten carbide onto the surface of a piece of metal. a) Flame plating b) Metal spraying c) Metalizing d) Powder pouring

A tipped tool is more useful than H.S.S. tool because A. It can resist more heat B. It can keep the cutting point sharp C. Cutting speed can be increased D. All of these

A type of bonding material, which is made of clay and water. A. Resinoid bond B. Vitrified bond C. Shellac bond D. Rubber bond

A type of coupling that allows slight amount of torsional angular flexibility due to introduction with some elastic material cylindrically wrapped around the bolts in the flange. a) Simple elastic bonded coupling b) Elastic material bushed coupling c) Elastic material bonded coupling d) All of these

A type of key that is used in self-aligning machine key made by a side milling cutter in the form of a segment of a disk. a) Kennedy key b) Saddle key c) Tangent key d) Woodruff key

A vector quantity that describes both how fast it is moving and the direction in which it is heated. a) Acceleration b) Displacement c) Motion d) Velocity

A very effective flux for soldering galvanized iron and zinc. A. Soldering pastes B. Muriatic acid C. Zinc chloride D. Cut acid

A wire rope that the wires and strands are twisted in opposite direction. a) Long lay b) Lang lay c) Regular lay d) Performed

Addition to lead and bismuth to aluminum will produce: A. An improvement of casting characteristics B. An improvement of corrosion resistance C. One of the best known age and precipitation hardening system D. An improvement in machinability

After grinding a tool bit, the cutting edge should be A. Case hardened B. Rubbed with emery cloth C. Rubbed with crocus cloth D. Stoned with an oilstone

Age-hardening is related with: A. Cast iron B. Duralumin C. German silver D. Stainless steel

Alloy steel axle under repeated load/stress will eventually fail if the load/stress is above the endurance for the steel under consideration. The endurance limit of the steel is therefore a) equal to the allowable stress of the module of elasticity b) equal to half of the ultimate strength c) equal to module of elasticity d) equal to 80% of the elastic limit

Aluminum alloys for pressure die casting A. Must possess considerable fluidity B. Must not be free from hot shortness C. Must have iron as one of the constituents D. Must be light

Amount of automatic feed in shaper is increased by taking the crank pin A. At the center of crack disc B. Towards the center of crack disc C. Away from the center of crack disc

An act of cutting out a piece of metal at a desired shape and size. A. Broaching B. Blanking C. Slitting D. Dinking

An arbor is used to _______ an drive the milling cutter. A. Guide B. Hold C. Control D. Support

An engineer's hammer is made of A. Cast iron B. High speed steel C. Forged steel D. Mild stee

An imaginary circle passing through the points at which the tooth of the meshing gears contact each other. a. Pitch circle b. Base circle c. Addendum circle d. Dedendum circle

An important accessory of milling machine. A. Milling Machine Vise B. Cutter C. Ram D. Vertical Milling Attachment

An instrument used for determining the relative hardness of materials by a drop and rebound method. A. Scleroscope B. Rockwell Hardness Tester C. Universal Testing Machine D. Brinell Hardness Tester

An iron in which most of the carbon is chemically combined with the iron is called A. Cast iron B. Gray iron C. White iron D. Malleable iron

An iron-bearing slate or chert in the form of compact siliceous rock. A. Tacomite B. Hermatite C. Magnetite D. Limenite

An object thrown upward will return to earth the magnitude of the terminal velocity equal to a) zero b) one-half the initial velocity c) twice the initial velocity d) initial velocity

An operation to enlarge the previous drilled hole A. Drilling B. Boring C. Reaming D. Broaching

An oversize hole is produced by a drill if A. Lips of drill are of unequal length B. Fed is too high C. Insufficient coolant is used D. Cutting speed is too high

Angle of center punch is A. 30° B. 45° C. 60° D. 90°

Arc blow takes place in a) Arc welding when straight polarity is used b) Arc welding when reverse polarity is used c) Gas welding d) Welding stainless steel

Back rake angle for a high speed steel point cutting tool to machine free cutting brass is A. 0° B. 5° C. 10° D. 15°

Before applying layout for blue on a piece of metal, it must be A. Cleaned B. Cold C. Heated D. Roughened

Before drilling a hole in a pipe of metal it should be A. Center punched B. Marked with chalk C. Protracted D. Scribed

Brasses and bronzes are welded using a) Carburizing flame b) Neutral flame c) Oxidizing flame d) Reducing flame

CNC in machine shop means A. Computer Number Control B. Computer Numerical Control C. Communication Network Control D. Computer Network Center

Cam in general maybe divided into two classes; uniform motion and _________motion cam. a) Reverse b) gravity c) decelerated d) accelerated

Carbide and ceramic tools are ground on ______ grinding wheel. A. Fine grain B. Hard C. Soft D. Diamond

Center drilling is the operation of A. Drilling a center in an odd-shaped of metal B. Drilling and countersinking with a tool C. Centering with one tool and drilling with another D. Drilling a center in a piece of stock in a drill press

Centrifugal separators that operate at speeds ________ also employ these flexible shafts. a) 1000 to 3000 rpm b) 5000 to 10000 rpm c) 15000 to 30000 rpm d) 20000 to 50000 rpm

Cold drawing is also called: A. Hard drawn B. Oxidized steel C. Cold lap steel D. Strain hardening

Cold drawing produces a ________ shaft that hot rolling, but with higher residual stresses. a) weaker b) stronger c) harder d) none of the above

Common defects encountered in a foundry shop steel casting operation and also in welding practices. A. Cracks B. Cold shot C. Parting line D. Blow / pin holes

Commonly utilized/cheapest shaft material available in the market with carbon content of 0.28 to 0.4? A. SAE 4132 B. SAE 4320 C. SAE 1030 D. SAE 4130

Compressive strength of a gray cast iron in tone per cm2 is of the order of: A. 3-5 B. 5-7 C. 7-10 D. 15-22

Concentricity of an outside diameter can be checked by A. Dial test indicator B. Outside micrometer C. Vernier caliper D. Tube micrometer

Consist of carbon and alloy used in production of precision work tools A. Chrome-manganese B. Titanium C. High speed steel D. Chrome-molybdenum

Consists of short lengths (2 to 3 inches long) of welds with space between as 6 inches on centers. a) Intermittent weld b) MIG weld c) Spot welds d) TIG welds

Convex shaped slotter tools are used for machining A. Concave surface B. Conical surface C. Flat surface D. Convex surface

Criteria for the limiting torsional deflection vary from 0.08 per foot of length for machinery shafts to _______ per foot. a) 1 b) 2 c) 3 d) 4

Cupola furnace is used to produce _______. A. Cast iron B. Cast steel C. Aluminum D. Stainless steel

Cyaniding is the process of A. Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness B. Dipping steel in cyanide bath C. Obtaining cyanide salts D. Reacting steel surface with cyanide salts

Endurance strength is nearly proportional to the ultimate strength but not with a) yield strength b) design stress c) shear stress d) all of these

Fast process of analyzing all elements and a chemical components of steel casting is: A. Pyrometer B. Carbon analyser C. Wet analyser D. Spectrometer

Good stabilizer in stainless steel is: A. Columbium B. Titanium C. Tantalum D. All of these

Grey cast iron is best welded by a) Arc b) MIG c) Oxy- acetylene d) TIG

How are rivets made? A. Cold pressing B. Rolling C. Drawing D. None of these

In a pair of gears, spur or bevel, the smaller is often called: a. Rack b. Pinion c. Worn d. Idler

In testing the material for endurance strength, it is subjected to A. Static load B. Impact load C. Dynamic load D. Completely reversed load

It has molybdenum alloy except: A. SAE 43xx B. SAE 41xx C. SAE 6xxx D. SAE 5xxx

It is a rotating machine member that transmits power. a) Cam b) Plate c) Shaft d) Flywheel

It is a science of motion that can be solved in terms of scalar or vector algebra. a) Kinematics b) Curvilinear translation c) Projectile d) Acceleration

It is an operation involving heating and cooling of metals to change the properties A. Annealing B. Nitriding C. Tempering D. Heat Treatment

It is an operation of finishing the flat and cylindrical surfaces to a fine degree of accuracy A. Lapping B. Shaping C. Planing D. Honing

It is an operation to divide the periphery of the job into number of equal parts accurately A. Dividing head B. Indexing C. Slotting D. None of these

It is associated with nickel steel A. Magnesium B. Lead C. Columbium D. Tin

It is axially located rectangular groove in a hub and shaft. A. Key Seat B. Cotter Pin Seat C. Flute D. Set Screw Point

It is frequently used in automobile and aircraft work. a) UNC b) UNEF c) UNF d) NC

It is surface finishing process by which scratches and toll marks are removed with a polishing wheel. A. Honing B. Lapping C. Polishing D. Buffing

It is the angle between the side cutting edge and the longitudinal axis of the tool. A. Side cutting edge angle B. End cutting edge angle C. Side relief angle D. End relief angle

It is the combination of iron, carbon and other alloying elements. A. Cast iron B. Brass C. Carbon steel D. Alloy steel

It is the direction of the predominant surface pattern A. Lay B. Roughness C. Smoothness D. Waviness

It is the distance measured to the axis from a point on a screw thread to the corresponding point on the next thread A. Lead B. Pitch C. Linear D. Chord

It is the intentional difference in the sizes of mating parts A. Allowance B. Clearance C. Limits D. Tolerance

It is the irregularities or departures from the nominal surface of greater spacing than roughness A. Roughness B. Lay C. Smoothness D. Waviness

It is the machine used for shaping of long, flat or flat contoured surfaces by reciprocating the work piece under a stationary single-point tool or tools. A. Planer B. Shaper C. Lathe D. Turret Lathe

It is the machine used for shaping of metal or plastic by pushing or pulling a broaching across a surface or through an existing hole in a work piece. A. Planning B. Shaping C. Broaching D. Milling

It is the measure of stiffness A. Modulus of rigidity B. Modulus of resilience C. Modulus of elasticity D. Modulus of toughness

It is the measure of the total energy-absorbed capacity of the material and includes the energy of both elastic and plastic deformation. A. Modulus of toughness B. Modulus of resilience C. Modulus of elasticity D. Modulus of rigidity

It is the method of grinding cylindrical surfaces. A. Centerless grinding B. Plunge-cut grinding C. Through feed grinding D. None of these

It is the motion of an object diminished/decreased speed. a) Deceleration b) Retarded motion c) Negative impulse d) All of these

It is the operation of beveling the mouth of a hole A. Counter sinking B. Counter boring C. Spot facing D. Counter boring

It is the operation of smoothing and squaring the surface around the hole A. Reaming B. Counter sinking C. Spot facing D. Counter boring

It is used on bolts for high-pressure pipe flanges, cylinder head studs etc. a) UNC b) UNEF c) UNF d) 8UN

It serves as an excellent deoxidizing agent and promotes the nitriding of steels A. Aluminum B. Boron C. Copper D. Brass

Limit gauge is made to the _________ sizes of the work to be measured A. Actual and nominal B. Minimum and maximum C. Nominal and lower limit D. Nominal and upper limit

Machine shop equipment that can flatter horizontally, vertically or angular plane called: A. Shaper Machine B. Welding Machine C. Drill Machine D. Power Saw

Material usually ceramics employed where resistance to very high temperature is required as for furnace linings and metal melting pots is called A. Bricks B. Insulator C. Refractories D. Clay

Metals are conductive because: A. The electrons are loosely bound to the nuclei and therefore mobile B. Having characteristics luster C. They are on the left side of the periodic table D. They are on the left side of the periodic table D. They have extra electrons as exhibited by normally possible balance state

Milling cutter is sharpened on A. Tool and cutter grinder B. Center less grinder C. Cylindrical grinder D. Surface grinder

Milling cutter is sharpened on A. Tool and cutter grinder B. Cylindrical grinder C. Centerless grinder D. Surface grinder

Mirror finish has surfaces fitness of _______ rms. A. 1 B. 2 to 8 C. 1 to 3 D. 2 to 5

Modulus of resilience is a) the same as the modulus of elasticity b) a measure of a materials ability to store strain energy c) the reciprocal of the modulus of elasticity d) a measure of the deflection of member

Molybdenum steels are painted ________. A. Green B. Blue C. Red D. Orange

Most effective alloying element for reducing brittleness of steel at very low temperature A. Manganese B. Molybdenum C. Silicon D. Nickel

Multi spot welding process is also referred as _____welding a) Tack b) Fillet c) TIG d) Projection

Muntz metal contains which of the following alloys? A. Copper - nickel B. Copper - zinc C. Copper - tin D. Copper - aluminum

Name of mechanism, which a welding operator holds during gas welding and at the end of which the gages are burred to perform the various gas welding operation. A. Hose B. Torch C. Gage D. Switch

Name the type of chuck commonly used for holding work piece in a lathe operation. Example 3-jaw universal chuck, 4-jaw independent chuck. A. Magnetic jaw chuck B. 2-jaw independent C. 8-jaw-universal D. Combination

Never use a file A. That is dirty B. With a tang C. Without a handle D. Without oiling

Normally, cast iron contains 2% carbon or more and silicon in the range of ______%. A. 1 to 3 B. 1 to 4 C. 2 to 3 D. 1 to 6

One of the following is not a tap used for cutting threads in holes. a) Tapping tap b) Plug tap c) Taper tap d) Bottoming tap

One of the following materials is not mentioned for wire rope pulley / sheave applications. a) Plastic b) Iron c) Paper d) Copper alloy

Peaucellier mechanism has how many links? a) 4 b) 5 c) 6 d) 8

Percentage of carbon in high carbon steel is A. 0.10% to 0.50% B. 0.70% to 1.5% C. 3% to 7% D. 5% to 10%

Permanent deformation or strain may occur without fracture is called: A. Malleability B. Elasticity C. Ductility D. Plasticity

Permanent keys made integral with the shaft and fitting into key ways broached into the mating hub. a) Square keys b) Splines c) Woodruff keys d) Kennedy keys

Permeability of foundry sand is: A. The capacity to hold moisture B. Distortion of binder in sand C. Fineness of sand D. Porosity to allow the escape of gases

Planer type milling machine is built up for __________ work of: A. Heavy duty B. Light duty C. Medium duty D. None of these

Plus or minus of the tolerance is also called: A. Total Tolerance B. Unilateral Tolerance C. Bilateral Tolerance D. None of these

Point angle of 135° on drills is used for: A. Bakelite hard rubbers and fibrous plastics B. Hard steels and nickel alloys C. Thin sheets metal D. B and C

Poisson's ratio is the ratio of a) shear strain to compressive strain b) elastic limit to compressive strain c) lateral strain to longitudinal strain d) elastic limit to proportional limit

Principal stresses occur on those planes a) where the shearing stress is zero b) which are 45 degrees apart c) where the shearing stress is a maximum d) which are subjected only to tension

Product of mass and linear velocity is known as: a) Impulse b) Linear momentum c) Angular momentum d) Impact

Products that have cross sections of less than 6 inches and that are not in the finished forms A. Slabs B. Gangue C. Blooms D. Billets

Progressive change in position of a body is called: a) Acceleration b) Motion c) Force d) Momentum

Projection welding is a) Continuous spot welding process b) Multi spot welding process c) Used to form frameworks d) All of the above

Properties which describe the behavior of the materials under the association of force are called as: A. Physical properties B. Chemical properties C. Mechanical properties D. Electrical properties

Refers to a portion of the small end of the tooth. a. Heel b. Toe c. Sole d. Corner

Refers to the diameter of the imaginary cylinder that bounds the crest of an external thread. a) Mean diameter b) Stress diameter c) Minor diameter d) Major diameter

Refers to the portion of the circumference of a grinding wheel touching the work being ground. A. Area of contact B. Arc of contact C. Angle of contact D. Contact ratio

Refers to the portion of the tooth surface adjacent to the involute lying inside a radial line passing through an imaginary intersection of the involute and the base circle. a. Over cut b. Under cut c. Tip relief d. None of these

Refers to the process of bulging on one end of a work piece to bring a required shape A. Bending B. Upsetting C. Drifting D. Jumping

Refers to the process of separating or removing the burning of combustible material from the neighborhood of the fire. A. Starvation B. Blanketing C. Cooling D. None of these

Splines are used when a) the power to be transmitted is low b) the power to be transmitted is high c) the torque is high d) axial relative motion between shaft and hub is necessary

Sprue is the passage provided for the A. Out flow B. In flow C. Smooth flow D. Solidification of the molten material

Tapered shanks are used on a large drill presses so that A. The drill can be centered more easily B. The drill can be easily forced out of the sleeve with a drift C. The shank can be reground when worn D. The shank will not turn when cutting

The ASA fits are based on the A. Basic Number System B. Basic Hole System C. Basic Size System D. Unit System

The Young's modulus of carbide tools is about ________. A. Three times than for steel B. Six times than for steel C. Nine times than for steel D. None of these

The ability of metal to withstand loads without breaking down is termed as a) strain b) stress c) elasticity d) strength

The apex of the pitch cone. a. Cone vertex b. Cone distance c. Cone radius d. Cone center

The application of electrical current to the corrosion circuit to counter the corrosion reaction is called: A. Cathodic protection B. Sacrificial anodes method C. Chemical corrosion process D. Galvanic action

The bed of machine tool is normally made of A. Alloy steel B. Cast iron C. Medium carbon steel D. Mild steel

The bending moment at a section of a beam is derived from the a) sum of the moments of all external forces on one side of the section b) difference between the moments on one side of the section and the opposite side c) sum of the moments of all external forces on both sides of the section d) sum of the moments of all external forces between supports

The best instrument for measuring thousandths of an inch is the: A. Caliper B. Micrometer C. Pyrometer D. Tachometer

The brittleness in steel elevated temperature is known as: A. Hard drawn B. Cold lap C. Red shortness D. Residual stresses

The built-in or fixed support is capable of supporting a) an axial load b) a traverse force c) a bending moment d) all of these

The center that is fitted in headstock spindle called A. Dead Center B. Live Center C. Above Center D. Below Center

The change in length per unit original length a) strain b) stress c) deformation d) elastic modulus

The changes in shape or geometry of the body due to action of a force on it is called deformation or a) shearing stress b) stresses c) compressive stress d) strains

The chip removal process is called A. Extruding B. Forging C. Rolling D. Broaching

The condition, which causes actual stresses in machine members to be higher than nominal values predicted by the elementary direct and combined stress equations. a) Stress concentration factor b) Stress factor c) Design factor d) Load factor

The cutting speeds of HSS milling cutter to machine aluminum is A. 140-200 m/min B. 160-220 m/min C. 180-240 m/min D. 200-260 m/min

The cutting tool used the shaper are similar to turning tools _______ machine. A. Planer B. Broaching C. Boring D. Lathe

The degree of stress concentration is usually indicated by the a) power factor b) stress concentration factor c) service factor d) stress factor

The degree to which a material will deform before ultimate fracture A. Brittleness B. Ductility C. Malleability D. Plasticity

The distance in inches a screw thread advances axially in one turn. a) Lead b) Circular pitch c) Pitch d) Mean pitch

The feed in shaper takes place at A. At the beginning of return stroke B. The beginning of cutting stroke C. The middle of return stroke D. The end of return stroke

The flux usually used for hard solder is a) Alum b) Barium c) Borax d) Rosin

The follower reciprocates or oscillates in a plane parallel to the axis of rotation. a) cam curves b) cylindrical cam c) tangential cam d) Radial cam

The follower reciprocates or oscillates in a plane perpendicular to the axis of rotation of the cam. a) Radial cam b) Cylindrical cam c) Cam curves d) Tangential cam

The good quality of a measuring tool A. Should be easy to handle B. Should be easy to read C. Should be wear resistance D. All of these

The grade is of grinding wheel depends upon: A. Grain size B. Hardness of bond C. Kind of abrasive D. Structure

The gradual chemical reaction by other substance such that the metal is converted to an oxide or other compounds A. Corrosion B. Cheeping C. Rusting D. Weathering

The higher the melting pint of the solder, the a) Harder the solder joint b) Softer the solder joint c) Stronger the solder joint d) Weaker the solder joint

The intensity of stress that causes unit strain is known as a) bulk modulus b) modulus of elasticity c) modulus of rigidity d) unit stress

The last point at which a material may be stretched a still return to its underformed condition upon release of the stress. a) rupture limit b) elastic limit c) proportional limit d) ultimate limit

The lathe compound is used for A. Angle cutting B. Grooving C. Facing D. Any of these

The lay shaft moves ________ the primary shaft. a) equal to b) more than c) less than d) in the gear ratio

The main shaft is lifted ________ the lay shaft. a) before b) after c) parallel to d) adjacent to

The meaning of module in a gearing system is: a. Distance b. Addendum c. Measure d.

The minimum suggested design factor of ________ for ropes miscellaneous hoisting equipment. a) 2 b) 3 c) 4 d) 5

The operation of cooling a heated piece of work rapidly by dipping it in water, brine or oil. A. Quenching B. Annealing C. Tempering D. Normalizing

The operation of enlarging a hole is called: A. Boring B. Counter Sinking C. Drilling D. Reaming

The operation of making a cone-shaped enlargement of the end of a hole, as for a recess for a flat head screw. A. Counter Sinking B. Knurling C. Squaring D. Performing

The operation of making a cone-shaped enlargement of the end of a hole, as for a recess for a flattened screw. A. Counter boring B. Counter sinking C. Reaming D. Drilling

The outbreak of fire can be avoided by preventing A. Fuel B. Heat C. Oxygen D. Any of these

The point angle of twist drill to machine is A. 112° B. 116° C. 118° D. 120°

The process of extracting iron in a blast is called A. Sintering B. Smelting C. Casting D. Manufacturing

The property that characterizes a material ability to be drawn into a wire is known as: A. Plasticity B. Elasticity C. Ductility D. Utility

The property that characterizes the material's ability to be drawn into a wire is called: A. Ductility B. Thermal conductivity C. Tensile strength D. Endurance limit

The purpose of tumbler gears in lathe is to: A. Cut gears B. Cut threads C. Give desired direction of movement to the lathe carriage D. Reduce spindle speeds

The quick return mechanism is slotter is provided in order to save the time in ________ stroke. A. Backward B. Forward C. Cutting D. Return

The ratio of average shear stress to maximum shear stress for a circular section is equal to a) 2 b) 2/3 c) 3/2 d) ¾

The size of a grinding wheel is taken from A. Diameter of wheel B. Bore size C. Width of face D. All of these

The spindle of bench vises are usually provided with a) buttress threads b) square threads c) acme threads d) v-threads

The standard ratio of cutting in return stroke in shaper is A. 3:1 B. 1:3 C. 2:3 D. 3:2

The tool used for cleaning files is called A. File cleaner B. File card C. File oilstone D. Scraper

The tool used in precision work to smooth on enlarge holes is called a A. Drift pin B. Reamer C. Round out D. Protractor

The tool used to check external pipe threads is called a A. Pitch gage B. Plug gage C. Ring gage D. Thread gage

The tool used to check internal pipe threads is called A. Gear center B. Gear cutter C. Gear hob D. Gear threader

The type and number of bearings to be used for spindles of machine tool depend on the A. Type of spindle B. Type of machine tool C. Load on the bearing D. None of these

The ultimate tensile stress of mild steel, as compared to its ultimate compressive stress will be a) less b) more c) more or less depending on the factors d) same

The unit deformation is called a) torsion b) strain c) stress d) shear

The usual ration of water to soluble oil used as cutting fluid is _________. A. 50% water to 50% oil B. 2 water to 1 oil C. 3 water to 1 oil D. 4 to 80 water to 1 oi

The usual value of helix angle of a drill is: A. 30° B. 60° C. 110° D. 120°

The voltage applied between tool (cathode) and work piece (anode) in ECM process is A. 30-50 V B. 60-90 V C. 3-20 V D. None of these

This particular cutting tool material could with stand cutting temperature of 1800 F and higher at cutting speed beyond possible with other cutting tool materials called: A. Titanium carbide B. Ceramic C. Carbide grade D. Cubic boron nitride

Ties are load carrying members that carry a) axial compressive loads b) axial tension loads c) prestressing thick cylinders e) d)relieving thick cylinders

To avoid brittleness of weld or the residual stress in the welding it is normally stress relieved of a) Quenching b) Normalizing c) Tempering d) Drawing

To avoid excessive wear rate the recommended limiting pressure for 6 x 19 rope is ___________ for cast iron. a) 200 psi b) 300 psi c) 400 psi d) 500 psi

To avoid slip or creep, the resin powder or paste is poured in between the outer surface of pulley and belt for increasing at tension. This process is known as A. Crowning B. Dressing C. Creep D. Slip

To remove metal stock rapidly the file to use is a A. Double-cut bastard B. Double - cut coarse C. Rasp D. A and C

Trimming is a process associated with: A. Electroplating B. Forging C. Machining of Metals D. Press Work

Tumbling is done so as to: A. Clean the surface of small parts B. Get surface finish C. Stress relieve the components D. Plate the surface

Tungsten in high speed imparts which of the following characteristics? A. Corrosion resistance B. Ductility C. Red hardness D. Shock resistance

Typical values for Poisson's ratio of aluminum and titanium is in the range of a) 0.25 to 0.27 b) 0.27 to 0.30 c) 0.30 to 0.33 d) 0.35 to 0.45

Used for members of intricate shape that would be difficult to manufacture by other methods A. Forging B. Casting C. Extruding D. Hot Working

Used for permanent fits and are similar to involute splines except that the pressure angle is 14.5 deg. a) Separation load b) Stub serrations c) Spline shaft d) Involute serrations

Valves and piping in an ammonia system are made of A. Iron B. Bras C. Copper D. Bronze

What heat treatment process can cast steel materials of high chrome high manganese etc. be subjected for the purpose machining process? A. Annealing B. Tempering C. Normalizing D. Quenching

What is the recommended sheave diameter for extra-flexible hoisting rope? a) 30d b) 31d c) 32d d) 33d

When tested in compression, ductile materials usually exhibit ________characteristics up to the yield strength as they do when tested in tension a) the same b) less than c) more than d) approximately the same

When the extreme outer corners of the cutting edges of a drill wear away too rapidly, it is an indication of A. Not enough speed B. Too much rake angle C. Too high a speed D. B or C

Which bond is suitable for wet grinding A. Rubber B. Shellac C. Silicate D. None of these

Which center is used for supporting open end of pipes, shells etc. while turning or thread cutting in a lathe A. Ball center B. Half center C. Female center D. Pipe center

Which diamond riveted joint can be adopted? a) Butt joint b) Lap joint c) Double riveted lap joint d) All types of joints

Which do not belong to foundry or metal casting shop? A. Shake - Out Machine B. Molding Machine C. Core making D. Forging

Which does not belong to the group? A. SAE B. AISI C. SEA D. ASTM

Which of the following information is necessary when ordering a file A. Size B. Shape C. Type of teeth D. All of the above

Which of the following is NOT a function of bearings A. To support the shaft B. To guide the shaft C. To give free rotation to the shaft D. To transmit power

Which of the following is a property of wrought iron? A. Ductile B. Brittle C. Cannot be forged D. Can be easily cast into different shapes

Which of the following is used in cleaning the gage blocks before and after use A. Brush B. Chamois leather or linen cloth C. Cotton waste D. None of these

Which of the following may be the Poisson ratio of a material? a) 0.45 b) 0.5 c) 0.55 d) 0.60

Which of the following mechanical devices is used for uniting or connecting parts of a mechanical system? a) Coupling b) Keys c) Splines d) Flexible coupling

Which of the following raises the tensile strength, protects from corrosion and improves wearing property? A. Cobalt B. Nickel C. Molybdenum D. Tungsten

Which of the following reduces the rubbing action? A. Front clearance B. Side clearance C. Slide rake D. Top rake

Which of the following services is not considered to be a work of a machinist? A. Reboring B. Grinding C. Over Hauling D. Honing

Which of the following shaft intermediate between a line shaft and a driven shaft? a) Counter shaft b) Jack shaft c) Head Shaft d) All of the above

Which of the following tools does not belong to the group? A. Hermaphrodite caliper B. Divider C. Double VEE block D. Trammel

Which of the following type of coupling is used with collinear shafts? a) Collar coupling b) Rigid coupling c) Flexible coupling d) Hydraulic coupling

Which of the following type of threads are useful in aeronautical equipments? a) UNC b) UNEF c) UNF d) NC

Wiping is the process of A. Applying flux during welding process B. Cleaning the welded surface after the welding operation is over C. Connecting load pipes by soldering alloy D. Low temperature welding

Wiping is the process of a) Applying flux during welding process b) Clearing the welded surface after the welding operation is over c) Connecting load pipes by soldering alloy d) Low temperature welding

_________ provides a very accurate prediction of failure of ductile materials under static loads or completely reversed normal, shear or combined stresses. a) Shear stress theory b) Normal stress theory c) Distortion energy theory d) Soderberg line theory

__________ improves the cutting quality and gives excellent magnetic property in the steel A. Cobalt B. Molybdenum C. Nickel D. Chromium

__________ is a lathe carriage part the bridge across the bed to carry the cross slide and tool rest. A. Automatic feed B. Apron C. Compound rest D. Saddle

__________ is equal to twice the addendum. a. Tooth flank b. Tooth thickness c. Whole depth d. Working depth

______________ means the resistance to penetration A. Hardness B. Strength C. Toughness D. Stiffness

A flexible hacksaw blade has a tendency to A. Snap easy B. Buckle or run out of line when too much pressure is supplied C. Cut too fast D. Cut on a slant

A form of correction that develop on a highly localized area on a metal surface A. Crevice B. Erosion C. Galvanic D. Apitting

A furnace used in melting ferrous metals. A. Annealing furnace B. Tempering furnace C. Induction furnace D. Normalizing furnace

A furnace used in melting non-ferrous metals is called: A. Cupola furnace B. Crucible furnace C. Induction furnace D. Tempering furnace

A fusion process in which the metal is heated together into a solid joint. a) Electric arc welding b) Gas welding c) Spot welding d) Projection welding

A grinding mill of large diameter with either lumps of ore, pebbles, or steel balls as crushing bodies the dry lead is swept to remove mesh material. A. Aero fall mill B. Aero motor C. Aerial speed D. Ball mill

A hand tool used to measure tension in bolts. a) Shaver b) Tachometer c) Tensor d) Torque wrench

A hard grade grinding wheel is suitable for grinding A. Hard materials B. Soft materials C. Both hard and soft materials D. None of these

A hard grade grinding wheel is suitable for grinding A. Hard materials B. Soft materials C. Both materials D. None of these

A holding device used to hold the job properly when turning the outer surface truly with the finished hole called A. Clamp B. Fixture C. Jig D. Mandrel

A key with one of several patented methods of keying is driven or pressed into a hole that is small enough to close the slit, assembled in radial direction. a) Fit key b) Saddle key c) Roll Pin d) Pin key

A kind of chuck, which has reversible jaws, which could be adjustable separately called: A. Collet Chuck B. Independent Chuck C. Four Jaw Chuck D. Magnetic Chuck

A kind of chuck, which has reversible jaws, which could be adjusted separately. A. Independent chuck B. Combination chuck C. Magnetic chuck D. Universal chuck

A kind of chuck, which should not be used where accuracy is required called: A. Collet Chuck B. Magnetic Chuck C. Four Jaw Chuck D. Universal Chuck

A kind of thread that is generally used. a) UNEC b) UNC c) UNF d) UNEF

A kinematics chain needs a minimum of a) 2 links and 2 turning pairs b) 3 links and 3 turning pairs c) 3 links and 2 turning pairs d) 4 links and 4 turning pairs

A liquid metal is called _________ A. Mercury B. Lead C. Zinc D. Aluminum

A locking device used to maintain pressure between the threads of the bolt and nut. a) Gasket b) Lock nuts c) Lock washer d) Lock out

A machine tool, which is very similar to a shaper except that the ram reciprocates vertically rather than horizontally. A. Lathe B. Grinder C. Planer D. Slotter

A machine used for forcing an arbor or a mandrel into drilled or bored parts preparatory to turning or grinding A. Automatic press B. Bladder press C. Arc press D. Arbor press

A machinery operation whereby the tool rotates while the feed is stationary. A. Shaping B. Milling C. Turning D. Reaming

A machining operation whereby the tool reciprocates while the feed is stationary. A. Planing B. Shaping C. Turning D. Reaming

A magnet is able to attract A. Iron, aluminum and brass B. Iron, cobalt and zinc C. Iron, copper and nickel D. Nickel, cabalt and steel

A major component of cast steel is: A. Silicon B. Iron C. Manganese D. Chromium

A mixture of aluminum powder and a metal oxide powder is ignited by a special powder in a crucible. a) Thermit welding b) Stud welding c) Resistance welding d) Gas welding

A small portable hand drill customarily used by hand setters to drill holes in breast called A. Diamond drill B. Spiral drill C. Churn drill D. Breast drill

A sprue is: a. A tool used in mould repairing b. A process of cleaning casting c. A chemical that is added to molten materials for sound castings d. A vertical passage through the cope and joining the pouring basin to the runner

Feed in a lathe is expressed in A. mm B. mm per degree C. mm per revolution D. rpm

A supporting member that carries a wheel and either rotates with the wheel to transmit mechanical power to or from it, or blows the wheel to rotate freely on it is called A. Shaft B. Axle C. Bushing D. Coupling

A tolerance where the size of a part is permitted to be either large or smaller than the given dimension. A. Bilateral B. Unilateral C. Lateral D. None of these

A tool-steel cutter used for finishing surfaces of angles greater or less than 90° with its axis of rotation is called ________. A. Circular cutter B. Helical cutter C. Angle cutter D. Asphalt cutter

A twist drill has its point thinned in order to A. Reduce the hole diameter B. Increase the rake angle C. Locate in the center punch mark D. Reduce the axial feed pressure

A twist drill is specified by: A. Its diameter and lip angle B. Its shank and diameter C. Shank, material and diameter D. Shank, material and flute size

A type of iron, which contains 3 to 3.5 % carbon either in combined form or in free state A. Wrought iron B. Cast iron C. Pig iron D. Gray iron

A universal chuck cannot be used to cut A. An eccentric B. A round stock C. A cam D. A and C

A weld made to hold the parts of a weldment in proper alignment until the final welds are made of a) Butt weld b) Tack weld c) Fillet weld d) Full fillet weld

Aging at moderately elevated temperature expedites the process and A. Natural aging B. Artificial aging C. Normal aging D. Supernatural aging

For a kinematics chain to be considered as mechanism, a) none of the links should be fixed b) one link should be fixed c) there is no such criterion d) two links should be fixed

For a single Hooke's coupling the shaft angle should not be greater than a) 10 b) 12 c) 15 d) 30

For a symmetrical cross-section beam the flexural stress is _______ when the vertical shear is maximum. a) infinity b) maximum c) minimum d) zero

For butt welding of two plates each of which is 25 mm thick, the best process would be a) TIG welding b) MIG welding c) Gas welding d) Electro slag welding

For cutting oil grooves in bearing _____ chisel is used A. Full round nose B. Half round nose C. Square nose D. Rectangular

For filing lead or babbit, use a A. Lead float life B. Mile file C. Vixen file D. A or C

For finishing a piece of work to size the file to use is the A. Crossing file B. Double - cut fine - tooth file C. Mill file D. Single - cut fine - tooth file

For gear cutting which cutter is used A. End mill cutter B. Form relief cutter C. Plain milling cutter D. All of these

For general work the cutting angle of a cold fist chisel is ground at an angle of A. 35° B. 60° C. 70° D. 80°

For grinding materials having low tensile strength which abrasive is used A. Corrundum B. Aluminum oxide C. Emery D. Silicon carbide

For heavy loads in aircraft bearings the material used with lead to reduce the risk of seizure is A. Iron B. Silver C. Tin D. Zinc

For kinematics chains formed by lower pair the relation between the number of joint J is given by a) L = 2/3(J+2) b) L = 3/2(J+2) c) L = 2/3(L+2) d) L = 3/2(L+2)

Formed milling operation of cutting gears can be used for cutting which type of gears? A. Spur B. Worm C. All of the above D. Beve

Formula that applies to a very slender column is called a) Column formula b) Euler's formula c) Moment formula d) Slender formula

Foundation bolts of specified size should be used and surrounded by a pipe sleeve with an inside diameter of a least ________ times the diameter of the anchor bolt. a) 1 b) 2 c) 3 d) 4

Foundation bolts should be at least ____________ times the diameter of the anchor bolt. a) 12 b) 14 c) 16 d) 18

Foundry crucible is made of A. Graphite B. German Silver C. Lead D. Mild Steel

Framework composed of members joined at their ends to form a rigid structure is known as : a) Joists b) Machine c) Purlins d) Truss

HSS cutting tools are generally provided with A. Positive rake angle B. Negative rake angle C. Positive cutting edge angle D. Negative cutting edge angle

Hacksaw blade that has the same number of teeth as given below are available. Which one would you chose for cutting brass? A. 18 teeth B. 24 teeth C. 28 teeth D. 31 teeth

Hacksaw blade with 24 TPI is best suited for cutting A. Brass and copper B. Sheet metal over 18 gages C. Tubing D. Any of these

Hacksaw blades are made of A. High speed B. Tool steel C. Tungsten alloy steel D. Any of these

Half corner weld is used a) Where severe loading is encountered and the upper surfaces of both pieces must be in the same plane b) Where efficiency of joint should be 50% c) Where longitudinal shear is present d) None of the above

Hard solder is made of a) Copper and zinc b) Tin and copper c) Tin and lead d) Tin and zinc

2. The angle at the base cylinder if an involute gear, that the tooth makes with the gear axis. a. Helix angle b. Pressure angle c. Lead angle d. Base Helix angle

21. Due to air effect, the hydraulic brakes become: A. More effective B. Ineffective C. Possible D. None of these

31. In motor vehicles, there is a __________ in addition of foot brake. A. Hand brake B. Hydraulic brake

31. It occurs under heavy loads and in adequate lubrication. a. Pitting b. Honing c. Scoring d. Tooth breakage

37. Cross wire grooves are types which A. Decrease the danger of skidding B. Absorb shocks because of road unevenness C. Provide good faction D. Provide better load carrying capacity

Are mixture of lard, cotton seed or rape-seed oils and mineral oils. A. Cutting oils B. Cooling oils C. Heating oils D. Emulsion

Are resistance welds, usually round in the same form as the electrodes that press the sheets together a) Edge joint b) MIG joint c) Spot joint d) TIG joint

Assuming longitudinal strain to be constant at any point in the thickness of the cylinder, the radial stress Sr and hoop stress Sh are related as a) Sr - Sh = constant b) Sr + Sh = constant c) Sr/Sh = constant d) Sr - Sh/Sr = constant

Autfrettage is the method of a) calculating stress in thick cylinders b) increasing life of thick cylinders c) prestressing thick cylinders d) relieving thick cylinders

Auto frottage is the method of a) calculating stresses in thick cylinders b) increasing life of thick cylinders c) prestressing thick cylinders d) relieving thick cylinders

Average mine-hoist practice is to use drums ______________ times the rope diameter. a) 60 to 70 b) 60 to 80 c) 60 to 90 d) 60 to 100

Balancing of grinding wheel is done to: A. Make the outside diameter concentric with the bore B. Make the sides of the wheel parallel C. Equalize the weight in very portion of the wheel D. None of these

Brazing is used for joining a) Tow ferrous material b) One ferrous and non-ferrous material c) Two non-ferrous metal d) Two non-metals

37. For internal gears having a 20 degree pressure angle and full depth teeth, the difference between the number of teeth in a gear and pinion should not be less than ______. A. 10 B. 12 C. 14 D. 16

38. The _____ of parallel connection of spring is always constant A. Elongation B. Load C. Thermal conductivity D. Resistance

39. Speedometer drive is generally taken from A. Dynamo B. Flywheel C. Gear D. Front wheel

39. The practical length of shoe is limited to about: A. 75 o B. 90 o C. 120 o D. 180 o

39. _______ occurs when the oil film fails but in this case, the load and speed are so high that the surface metal is melted and the metal is melted and the metal is smeared down the profile. A. Abrasion B. Corrosion C. Spalling D. Scoring

49. Arc of the pitch circle which a tooth travels from its contact with the mating tooth at the pitch point to the point where the contact ceases is called: A. Arc of contact B. Arc of approach C. Arc of recess D. Arc of action

49. The act keeping some pressure on the clutch pedal at the time of driving is known as: A. Hydraulic clutch B. Slip of the clutch C. Riding on clutch D. Clutch adjustment

49. The distance between the teeth measured on the pitch surface along a normal to the helix A. Lead B. Lead angle C. Normal circular pitch D. Pitch

49. The length ratio L/D typically varies between A. 0.1 to 0.5 B. 0.2 to 0.6 C. 0.2 to 0.8 D. 0.25 to 1.0

49. What is the usual factor of safety used with leather belts? A. 3 B. 5 C. 7 D. 10

49. ______ is used to transmit power between shafts axis of which it intersect A. Spur Gears B. Bevel Gears C. Helical Gears D. Straight Bevel Gears

5. Refers to the cone that is performed by the elements of top lands A. Face cone B. Root face C. Dial face D. Pitch face

A cantilever beam having a uniformly increasing load toward the fixed end a) has uniform shear b) has a reaction equal to the load c) will have maximum bending moment midway to the beam d) has a reaction is not equal to the load

A carbon content in the range of ______ in steel readily responds to heat treatment. A. 0.35 to 0.40% C B. 0.28 to 0.30% C C. 0.18 to 0.25% C D. 0.12 to 0.15% C

A center, which is fitted in tailstock spindle called A. Dead Center B. Live Center C. Above Center D. Below Center

A cheap variety of bolt was made in small sizes. a) Stud bolt b) Carriage bolt c) Stove bolt d) Mini bolt

A cold chisel is made of A. Cast iron B. High carbon steel C. High speed steel D. Mild stee

A column is called short column when a) the length is more than 30 times the diameter b) slenderness ratio is more than 120 c) the length is less than 8 times the diameter d) the slenderness ratio is more than 32

A combination of minerals which can be profitably mined A. Gangue B. Metal C. Alloy D. Ore

A cone formed by elements, which are perpendicular to the elements of the pitch cone at the large end. a) cone distance b) back cone c) root cone d) cone center

A coolant is usually used when cutting material in a power hacksaw to A. Absorb heat of friction B. Prevent the blade from overheating C. Prevent the blade from losing D. All of the above

A core drill with hardened steel shot pellets that revolve under the rim of the rotating tube, employed in rotary drilling in every hard ground. A. Automatic drill B. Double core barrel drill C. Flat drill D. Adamantine Drill

A corrosion occurs within or adjacent to a crevice formed by contact with another piece of the same or another metal is called: A. Galvanic B. Pitting C. Erosion D. Crevice

A cutting tool angle between the side cutting edge and the plane perpendicular to direction of feed travel is _______ angel. A. Side relief B. Side cutting edge C. Lead D. Side rake

A device for holding grinding wheels of special shape or the working piece being grounded. A. Head stock B. Fixtures C. Jigs D. Chuck

A flange coupling is a) flexible b) used for collinear shafts c) used for non-collinear shafts d) used only on small shafts rotating at low speed

11. The total depth of a tooth space, equal to addendum plus Dedendum A. Full Depth B. Working Depth C. Whole Depth D. Dedendum

21. An imaginary circle passing through the points at which the teeth of the meshing gears contact each other. A. Pitch Circle B. Addendum Circle C. Dedendum Circle D. Base Circle

48. The capacity of a crossed belt should be reduced to _____ that of an open belt A. 25% B. 50% C. 60% D. 75%

9. The ratio of the number of teeth to the number of mm of pitch diameter equals number of gear teeth to each mm pitch diameter A. Diametral Pitch B. Module C. Circular Pitch D. English Module

9. The total width dimensions of a gear blank to the pitch plane. a. Total face width b. Effective face width c. Addendum d. Transverse plane

A device used for accurately measuring diameters. A. Dial gage B. Feeler gage C. Caliper D. Micrometer

A device used to fix two or more parts A. Jigs B. Fixtures C. Fastener D. Clamp

A gear with teeth on the outer cylindrical surface. a. Rack gear b. Zerol gear c. Miter gear d. External gear

A machine tool used for large construction A. Planer B. Shaper C. Slotter D. Lathe

A machine used in testing steel generally strikes the specimen with an energy from 22- t0 265 ft-lb/ A. Izod Test B. Charpy Test C. Rockwell Test D. Test Blocks

A machine, which simultaneously molds and cures a pneumatic tire is called A. Bladder press B. Crank press C. Automatic press D. Manual press

A metallic element of copper-tin alloy A. Aluminum B. Brass C. Bronze D. Chromium

A rigid tool holder to machine internal surfaces is called: A. Boring bar B. Boring mill C. Broaching machine D. Corrugated bar

A soft yellow metal, know since ancient times as a precious metal which all materials values A. Solid's B. Bronze C. Gold D. Austenite

A wire rope that the wires and strands are twisted in the same direction. a) Long lay b) Lang lay c) Performed d) Non-performed

Ability to resist deformation under stress is called: a) plasticity b) all of these c) stiffness d) toughness

An alloy of copper and zinc A. Aluminum B. Brass C. Bronze D. Chromium

Another name for hydrochloric acid is A. Acetic acid B. Muriatic acid C. Nitric acid D. Sulfuric acid

At small quantity, this alloy is effective for improvement strength at high temperature A. Chromium B. Manganese C. Selenium D. Molybdenum

At very low cutting speeds the tool wear is due to A. Plowing action B. Transfer C. Material D. Temperature

Babbit metal is an alloy of A. Tin, copper, antimony and lead B. Copper, zinc and tin C. Iron and tungsten D. Tin, copper, lead and phosphorous

Brazing requires a) Hard solder b) Soft solder c) More heat d) Choices A and C

Broaching operation is generally used in automobile industry as: A. It is a mass production machine B. It is an automatic machine C. Operation is completed in one stroke D. Semi-skilled operators can be employed

Cemented carbide tipped tools can machine metal even when their cutting elements get heated up to a temperature of A. 1650°C B. 1000°C C. 1400°C D. 1800°C

Chuck used on turret lathe is A. Collet chuck B. Four jaw self-centering chuck C. Magnetic chuck D. Three jaws independent chuck

Commercial shafting is made of a) low carbon steel b) cast iron c) brass d) bronze

Hart mechanism has how many links? a) 4 b) 6 c) 8 d) 12

In pure torsion, the minimum torsional stress occurs at the a) center b) long side c) medium side d) short side

It is also known as slab peripheral milling A. Form milling B. Climb milling C. Convex milling D. Plain milling

It is the ability of the material of resist deformation under stress. A. Plasticity B. Stiffness C. Toughness D. All of these

It is used for holding straight shank drills in the spindle of the machine when drilling. A. Drill chuck B. Chuck key C. Floating holder D. Magic chuck

Metal that assists lubrication or lubricant in itself A. Zinc B. Antimony C. Babbit D. Lead

Nickel - Chromium - Molybdenum steel designation SAE ______ A. 81xx B. 74xx C. 94xx D. 64xx

The helix angles for the herringbone gears are used from ______for industrial gears. a. 10 to 15 b. 15 to 20 c. 20 to 30 d. 25 to 45

The structure formed when transformation occurs at temperaute down to the knee of the curve A. Pearlite B. Bainite C. Martinsite D. Limonite

The triangular scraper has _______ sharp cutting edges A. One B. Two C. Three D. Four

Two extreme permissible sizes of a dimension A. Boundary B. Limits C. Tolerance D. Allowance

Which type of load that is applied slowly and is never removed? a) Uniform load b) Static load c) Equilibrium load d) Impact load

permits the design surface compressive stress to be about ________ higher than the design tensile stress. a) 40% b) 50% c) 60% d) 70%

t is a process of enlarging and smoothing the punched hole by means of tapered drifts of various sizes and shapes. A. Drifting B. Drawing C. Upsetting D. Jumping

It is a device, which is used to change the shape of a piece by removing material in the form of chips A. Cutting tool B. Machine tool C. Chisel D. Hacksaw

It is a hole in revolving cutter or grinder wheel for mounting it on an arbor. A. Hole saw B. Arbor hole C. Star drill D. Peep hole

It is a machine tool designed to machine internal work such as cylinders, holes in castings, and dies, types are horizontal, vertical jig, and single. A. Boring machine B. Broaching machine C. Drilling machine D. Boring mill

It is a machine tool used for cutting flat-on-flat an-toured surfaces by reciprocating a single-point tool across the work piece. A. Planer B. Shearing machine C. Shaper D. Slab cutter

It is a process by which the length of a work piece is reduced A. Upsetting B. Drawing out C. Drifting D. Jumping

Heating of metal above the critical temperature and then cooling slowly usually in the furnace to reduce the hardness and improve the machinability is called: A. Normalizing B. Annealing C. Tempering D. Quenching

Heating to a sub-critical temperature about 1,100F to 1300F and holding at that temperature for a suitable time for the purpose of reducing internal residual stresses is called A. Annealing B. Hardening C. Tempering D. Stress relieving

High carbon steel has a carbon content of: A. 0.05 to 1 % B. 0.8 to 2 % C. 1 to 3 % D. 2 %

How is aluminum work piece marked? A. Ball pen B. Lead pencil C. Crayon D. Chalk

How is the height of a bench vice adjusted? A. By using a wooden plate form B. By using a wooden packing piece under the vice base C. By using a vice adjusting fixture D. All of these

In ECM process thermal current requirement is A. 100 amps/cycle of work piece area B. 200 amps/cycle of work piece area C. 500 amps/cycle of work piece area D. 800 amps/cycle of work piece area

In Machine Shop had forging operation of lengthening a piece of stock while reducing the cross-sectional area of work is called: A. Bloating B. Upsetting C. Spreading D. Draining

In a part at uniform temperature and not acted upon by an external load, any internal stress that exists is called: a) Control stress b) Form stress c) Residual stress d) Superposed stress

In a slotter, the table gets ______ different feeds A. One B. Two C. Three D. None of these

In a standard dividing head 3 inches in 27 holes circle will index: A. 1 ° B. 4° C. 2° D. 6°

It is a process of cleaning the face of grinding wheel by means of a dresser for removing the glazing and loading of wheel and to improve the cutting action of a wheel. A. Dressing B. Polishing C. Truing D. Lapping

In cross or regular lay ropes the a) direction of twist in strands is opposite to the direction of twist of strands b) direction of twist of wires and strands are the same c) wires in two adjacent strands are twisted in opposite direction d) wires are not twisted

In flange coupling the weakest element should be the a) bolts b) flange c) key d) shaft

In general for machinery shafts, the permissible deflection may be closer to a) 0.02 in/ft b) 0.01 in/ft c) 0.002 in/ft d) 0.030 in/ft

In greater quantity, this element is harmful to the molten ferrous metal. A. Silicon B. Aluminum C. Oxides D. Sulfur

In machine tool drive, the modulus for gears is usually selected between: a. 10 ≥ μ ≥ 1 b. 2 ≥ μ 1 c. 20 ≥ μ ≥ 1 d. 5 ≥ μ ≥ 1

In many cases the _________ of the shaft is an import design feature. a) deflections b) rigidity c) size d) strength

In nickel - iron cell, the electrolyte is: A. Dilute sulphuric acid B. Dilute potassium hydroxide C. Dilute sodium ammonium hydroxide D. Dilute sodium chloride solution

In powder metallurgy, the process of heating the cold pressed metal powder is called: A. Deposition B. Granulation C. Precipitation D. Sintering

In which method a bore is finished to a very close tolerance A. Lapping B. Honing C. Grinding D. Turning

In which screw thread the side = width of flat = width of space = 0.5p is termed as A. Acme B. Buttress C. Knuckle D. Square

Instantaneous center of rotation of a link in a four bar mechanism lies on a) a point obtained by intersection of extending adjoining links b) left side pivot of this link c) right side pivot of this link d) any of the choices above

Internal and external taper on cylindrical jobs are ground in A. Plain cylindrical grinding machine B. Universal cylindrical grinding machine C. Internal grinding machine D. Centerless grinding machine

Internal stress exerted by the fibers to resist the action of outside force is called: a) Shearing stress b) tensile stress c) ultimate stress d) compressive stress

Is the permissible variation of the size of a dimension. A. Tolerance B. Allowance C. Clearance D. Interference

It connects the shafts with soft materials such as rubber, leather and canvas A. Universal coupling B. Flexible coupling C. Rigid coupling D. Oldham coupling

It gives the cutting tool longitudinal feed, cross feed or angular feed A. Compound rest B. Apron C. Saddle D. Carriers

It has a powerful softening effect on cast iron and its pressure in cast iron reduces the ability of the iron to retain carbon in chemical combination A. Aluminum B. Carbon C. Silicon D. Sulfur

It has been said that 80% of the failures of machine parts have been due to a) compression b) fatigue failures c) negligence d) torsion

It is a case hardening process by which the carbon content of the steel near the surface of a part is increased A. Nitriding B. Tempering C. Carburizing D. Flame Hardening

It is a case hardening process in which work piece is heated in a stream of ammonia at 500 to 550°C. A. Quenching B. Annealing C. Tempering D. Nitriding

It is also known as climb milling in which the rotation of the cutter and the movement of the table is the same direction. A. Down milling B. Up milling C. Straddle milling D. Gang milling

It is also known as conventional milling in which the rotation of the cutter is in the direction opposite to the direction of the table movement A. Down-milling B. Up-milling C. Standard milling D. Gang milling

It is an operation in which round rod is placed between the top and bottom swages and hammered to remove the bends and marks A. Bending B. Peening C. Swaging D. Upsetting

It is one that is not appreciably deformed by the action of any external force or load. a) rigid body b) structure c) Frame d) Mechanism

It is standard practice to assume that the thickness of the tooth measured sound the pitch circle is exactly ________ the circle path. a. One half b. One third c. One fourth d. One fifth

It is suggested that the design factor on the yield strength be about 1.5 for the smooth load, about 2 to 2.25 for minor shock loads, and _________ when the loading reverse during operation. a) 3.0 b) 4.0 c) 3.5 d) 4.5

Jigs are generally used for holding the job and __________ the tool A. Support B. Guide C. Control D. Regulate

Joining metal by means of high current at low voltage. During the passage of current, pressure by the electrodes produces a forge weld: a) Spot welding b) Resistance welding c) Steam welding d) Gas welding

Knurling is done to __________. A. Boring B. Chamfering C. Planning D. Turning

Lapping is done A. To finish the job to a fine degree of accuracy B. To get high quality of surface finish C. To control the size D. All of these

Laser beam machining process is used to machine A. Thicker materials B. Thinner materials C. Heavier materials D. Stronger materials

Material having a high electrical resistance and should not be used as conductor of electrical current. A. Magnesium B. Copper C. Nickel D. Iron

Normal stress relieving temperature for cast steel is: A. 200 to 300°F B. 400 to 500°F C. 300 to 400°F D. 450 to 550°F

The helix angle on a high speed steel twist drill for drilling cast iron is the order of: A. 12-22° B. 24-32° C. 35-40° D. 40-45°

The internal stresses existing in a welded connection are a) Relieved by x-ray analysis b) Maybe relieved when weld is penned c) Not relieved when the weld is penned d) Not relieved by heat treatment

The jaws of a long vice are opened A. Parallel to each other B. In V form C. In both "A" and "B" D. Neither "A" nor "B"

The length of a shaper stroke is the length of the job plus _________. A. Displacement B. Tolerance C. Allowance D. Clearance

The length of the gear tooth measured along an element of the pitch surface is called: a. Acting flank b. Face width c. Flank of the tooth d. Tooth space

The load acts over a smaller area, and the ________ continues to increase unit failure. a) actual stress b) allowable stress c) compressive stress d) tensile stress

The machine, which can flatter surface on horizontal, vertical or angular plane. A. Drilling Machine B. Shaper Machine C. Power Saw D. Lathe Machine

The material used for commutator brushes is mostly A. Copper B. Mica C. Carbon D. Cast iron

The material used in high speed processes. A. High speed B. Chromium C. Cast iron D. Carbon steel

The maximum allowable working pressure of a non-code steel or wrought iron heating boiler of welded construction shall not exceed. a) 0.5 bar b) 1.0 bar c) 1.5 bar d) 2.0 bar

The maximum bending moment of a beam simply supported at both ends and subject to a total load uniformly distributed over its length L is expressed by the formula a) L/8 b) L 2/8 c) L/2 d) L 2/2

The melting point of the filler material in brazing is approximately or above. a) 420⁰F b) 600⁰F c) 800⁰F d) 1000⁰F

The modulus of elasticity for most metals in compression is usually taken as that in a) tension b) bearing c) torsion d) yield

The presence of sulfur in pig iron makes ____ A. It brittle B. It easily machinable C. It hard D. The casting unsound

The process of lengthening a piece of stock while the cross-sectional area is being reduced. A. Tapping B. Honing C. Drawing D. Upsetting

The process of obtaining the resultant of any number of vectors. a) Scalar quantity b) Vector composition c) Vector quantity d) Vector resolution

The process of redistributing the mass attached to a rotating body in order to reduce vibrations arising from a centrifugal force. a) Shaft coupling b) Shaft balancing c) Shaft hooper d) stator balancing

The process of working metals by the application of sudden blows or by a steady pressured called: A. Rolling B. Forging C. Casting D. Turning

The purpose of tempering is to make the metal A. Harder B. Softer C. Less brittle D. More brittle

It is a process of shearing in which sheet or plate is cut out to a definite outline in a press A. Blanking B. Stamping C. Spinning D. Trimming

The relation between two mating parts with reference to ease the assembly is called A. Allowance B. Clearance C. Tolerance D. Fits

The size of the bench vise is measured from the ______ of its jaws A. Width B. Length C. Thickness D. Curvature

The total strain energy stored in a body is called a) resilience b) proof resilience c) modulus of resilience d) toughness

Thin cylindrical shell of diameter d and thickness t when subjected to internal pressure P, if Poisson's ratio of material is , the circumferential or hoop strain is a) Pd(1-2)/2tE b) Pd(1-2)/ c) Pd(1/2 - )/2tE d) Pd(1/2-)/4tE

What is the property of a material, which resists forces acting to pull the material apart? a) shear strength b) tensile strength c) torsional strength d) compressive strength

What is the reason why lead is used in solders? a) It has a high melting point. b) It has a low melting point. c) It is cheap d) Choices B and C

Which is the lightest metal A. Aluminum B. Cast iron C. G. I. sheet D. Lead

Which kind of bond is commonly used A. Vitrified B. Rubber C. Shellac D. Silicon

Which of the following gives shearing action A. Slide rake B. Top rake C. Side clearance D. Front clearance

Which of the following is a boring machine tool used particularly for large work piece, types are horizontal and vertical? A. Boring mill B. Burrstone mill C. Cage mill D. Chile mill

Which of the following is an unsafe condition in operating a lathe machine? A. Wearing denim pants/safety shoes B. Wearing a canvass apron C. Operating with safety gloves D. Wearing safety goggles/hearing aid

Which of the following is not used to resemble the shape of tool bit? A. Round nose B. Center cut C. Thread cutting D. Square nose

1. The _____ from which an involute tooth is generated or developed. a. Root circle b. Base circle c. Pitch circle d. Dedendum circle

1. The minimum recommended worm pitch diameter is ¼ in and the maximum is: A. 1 ¾ in B. 2 ¾ in C. 3 in D. 2 in

1. The rule of thumb in journal bearing design, the clearance ratio/clearance should be A. 0.01001 B. 0.0101 C. 0.0110 D. 0.0010

1. Tooth width measurement along the chord at the pitch circle A. Chord Space B. Chord Clearance C. Chordal Thickness D. Chordal Length

10. A spring wire with good quality for impact loads at moderately high temperature A. Hard drawn wire spring B. Helical spring wire C. Chromium-silicon D. Helical tension spring wire

10. For economical cost in the manufacturing large worm gears, the following materials are usually applied: A. Bronze rim with cast steel spider B. Cast iron rim with bronze spider C. Cast steel rim with brass spider D. Alloyed aluminum rim with cast iron spider

12. When the pitch line speed is above 800 fpm the teeth should be: A. Ground after hardening B. Should be cooled in air C. Should be quenched after D. None of these

13. A clutch that has a disadvantage of heavier rotary masses. A. Multiple disc clutch B. Disc cluth C. Cone clutch D. None of these

13. A plane tangent to the surfaces at a point or line of contact. a. Normal plane b. Pitch plane c. Tangent plane d. Axial plane

15. The amount by which the width of a tooth space exceeds the thickness of the engaging tooth on the pitch circles A. Backlash B. Clearance C. Undercut D. Chordal thickness

15. The angle subtended at the center of the base circle from teeth origin of an involute to the point of tangency of the generation from any point of the same involute. a. Root angle b. Roll angle c. Pitch circle d. Base circle

15. The line that passes through centers of the bearing and the journal is called the A. Line of action B. Line of centers C. Line of tangent D. Under cut

15. The overrunning clutch: A. Transmits cranking force to the engine flywheel B. Is one way clutch C. Prevents the engine flywheel from driving the starting motor D. All of these

17. The portion of a gear tooth space that is cut below the pitch circle and is equal to the addendum plus the clearance A. Root B. Dedendum C. Addendum D. Tooth Space

17. The ratio of the arc of action to the circular pitch is known as: a. Contact ratio b. Action ratio c. Recess ratio d. Approach ratio

17. The solid length plus the clearance plus the maximum deflection. A. Free length B. Height C. Distance D. Original length

18-8" stainless steel means: A. 18% Tungsten and 8% Chromium B. 18% Chromium and 8% Nickel C. 18% Nickel and 8% Chromium D. 18% Chromium and 8% Cobalt

18. A device for engaging and disengaging gears. a. Gear shift b. Gear train c. Gear wheel d. Gear motor

19. The depth of tooth space below the pitch circle or the radial dimension between the pitch circle and the bottom of the tooth space. a. Addendum b. Dedendum c. Working depth d. Whole depth

19. The distance from the center of one tooth of a gear to the center next consecutive tooth measured on the pitch. A. Circular Pitch B. Module C. Diametral Pitch D. Circular Pitch

19. The tension in the belt due to centrifugal force increases rapidly above A. 2500 fpm B. 3000 fpm C. 3500 fpm D. 4000 fpm

20. For helical and herringbone gears, the speed ratio is limited to: a. 3:1 b. 5:1 c. 6:1 d. 10:1

20. It is used to transmit power at high velocity ratios between non-intersecting shafts that are usually but not necessarily at right angle. A. Helical gear B. Bevel gear C. Worm gear D. Spiral gear

20. The circle that bounds the bottom of the teeth. a. Addendum circle b. Pitch circle c. Base circle d. Dedendum circle

20. The lining of a brake shoe: A. Can be changed B. Cannot be fitted C. Can be fitted with spring D. None of these

22. If the lead angle of a worm is 22.5 degrees then the helix angle will be ______ A. 45 degrees B. 67.5 degrees C. 22.5 degrees D. 90 degrees

22. The 200 series bearing is called A. Heavy B. Light C. Medium D. None of these

22. The concave portion of tooth profile where it joints the bottom of the tooth filler curve is called: A. Fillet curve B. Fillet radius C. Bottom depth D. Fillet

22. The design stress based upon the ultimate strength of the material with a factor of safety of about _____. a. 2 b. 3 c. 4 d. 5

27. Power brakes require ______ power: A. Equal B. Less C. More D. Pulsating

28. The spring index for general industrial uses should be A. 5 to 7 B. 6 to 8 C. 7 to 9 D. 8 to 10

28. Tooth breakage on gear is usually: A. A tensile fatigue B. A contact stress C. A crack D. None of these

29. A _____ is a spur gear of infinite diameter. a. Hypoid b. Herringbone c. Annular d. Rack

29. AGMA means: A. American German Manufacturer Association B. Athletic Gear Main Association C. American Gear Metal Association D. American Gear Manufacturer Association

29. Hyphoid gear is a special type of gear like: A. Worm Gear B. Spur Gear C. Herring Gear D. Bevel Gear

29. In case of gears, the addendum is given by A. One module B. 2.157 x module C. 1.57 x module D. 1.25 x module

3. In usual spur gearing, the: A. Pitch circle and base circle are the same B. Working depth induces clearance C. Tooth outline are always cycloidal curves D. Tooth outlines are usually involute curves

3. The angle between the tooth profile and radial line at its pitch point. Involute teeth the angle between the line of action and line tangent to the pitch circle. a. Roll angle b. Pitch angle c. Helix angle d. Pressure angle

3. The arc of action to circular pitch or length of action to base pitch A. Approach B. Contact ratio C. Arc of action D. Arc of approach

3. The ratio of mean diameter of coil to the coil diameter A. Wahl factor B. Diameter ratio C. Spring index D. Lead angle

31. In a pair of gears, _____ is the plane perpendicular to the axial plane and tangent to the pitch surface. A. Pitch B. Pitch Plane C. Pitch Circle D. Pitch point

32. Engine valves get shut by means of A. Valve lock B. Tappet C. Valve spring D. Adjusting screw

33. _______ commonly used in a parallel shaft transmission especially when a smooth continuous action is essential as in high speed drives up to 12,000 fpm. A. Bevel Gear B. Herringbone Gear C. Spur Gear D. Helical Gear

34. For worms mating with gears having 24 teeth or more the _____ pressure angle is recommended. a. 14.5 degrees b. 20 degrees c. 22.5 degrees d. 25 degrees

34. Hydraulic clutches are used in _______ vehicles. A. Costly B. Foreign made C. Cheap D. Affordable

34. It is also called anti-friction bearing. A. Rolling bearing B. Thrust bearing C. Tapered bearing D. Single row bearing

36. In the selection of the proper belt, it is not considered good practice to use single-ply leather belts more than ____ wide A. 6 in. B. 7 in. C. 8 in. D. 9 in.

36. It acts toward the center of the bearing along a radius. A. Thrust load B. Tangential load C. Radial load D. Peripheral load

36. Refers to a flat or curved made of thin superimposed plates and formin a cantilever or beam of uniform strength. A. Laminated spring B. Graduated spring C. Full spring D. Conical spring

38. A gear with teeth on the inner cylindrical surface. a. Pitch gear b. Internal gear c. Idler d. Spur gear

38. A type of gear tooth cut inside a cylinder or ring is termed as: A. Rack Gear B. Ring Gear C. Miter Gear D. Internal Gear

38. For worm gears, circular pitch is equal to: a. Axial pitch b. Diametral pitch c. Normal pitch d. Traverse pitch

38. Refers to the simplest type of brakes. A. Differential brakes B. Block brakes C. Band brakes D. Brake shoe

4. _____ is a kind of gear used to transmit motion from one shaft to another shaft at angle to the first A. Worm Gear B. Bevel Gear C. Helical Gear D. Spur Gear

43. For the average application a center distance equivalent to ____ pitches of chain represents good practice. A. 10 to 20 B. 20 to 30 C. 30 to 50 D. 40 to 60

43. The length of the hub should not be made ____ the face width of the gear. A. Less than B. Equal C. Greater D. None of these

43. Type of brake under the category of power brake is known as: A. Servo brake B. Band brake C. Differential brake D. Brake shoe

44. The tension ratio of flat belt is: A. 2 B. 3 C. 4 D. 5

45. The angle through which the gear tirns from the time a particular pair of teeth come into in contact until they are in contact at the pitch point A. Pressure angle B. Angle of action C. Angle of approach D. Angle of recess

45. The apex of the pitch cone a. Cone center b. Vertex c. Pitch point d. Apothem

46. Arc of the circle through which a tooth travels from the point of contact with the mating tooth to the pitch point is called: A. Arc of contact B. Arc of approach C. Arc of recess D. Arc of action

46. Balata belt is about _____ stronger than rubber A. 10% B. 15% C. 20% D. 25%

8. A low cost spring material, suitable where service is not severe and dimensional precision is not needed. A. Hard drawn wire spring B. Helical spring C. Stainless steel D. Helical tension spring wire

A grinding wheel which has got the marking °C, is made with the abrasive A. Aluminum oxide B. Silicon carbide C. Combination of A and B D. Corrundum

A group of heat treatable cast iron moderate to high strength, high modulus of elasticity, goal machinery, and good resistance carbon. A. Gray iron B. Malleable iron C. Ductile D. White iron

A group of thin steel strips used for measuring clearances. A. Feeler Gage B. Tachometer C. Micrometer D. Caliper

Back rake angle for HSS single point cutting tool to machine free cutting brass is A. 0° B. 5° C. 10° D. 15°

Cast iron contains _____ % carbon. A. 0.05 to 0.30 B. 0.30 to 0.80 C. 0.80 to 1.30 D. 2 to 4

It is an integral part of a machine. a) Spindle b) Axle c) Counter shaft d) Machine shaft

Jig bushing are generally made of A. Mild steel B. Cast iron C. Brass D. Tool steel

Minimum thickness for boiler plate shall be a) 3.56 mm b) 5.36 mm c) 6. 36 mm d) 6. 56 mm

Rocker arm is a _______ part of shaper A. Oscillating B. Reciprocating C. Moving D. Running

The _______ of a worm is the distance between the center of one tooth and the center of an adjacent tooth, measured perpendicular to the teeth. a. Diametral pitch b. Circular pitch c. Axial pitch d. Normal pitch

The ________ is equal to the tooth thickness plus the space width. a. Normal pitch b. Axial pitch c. Diametral pitch d. Circular pitch

The _________ is the angle at which the teeth of a helical gear are slanted across the face of the gear. a. Lead angle b. Helix angle c. Pressure angle d. Pitch angle

The _________ is the arc of the pitch circle where the tooth profile cuts the pitch circle when a pair of teeth first comes in contact until they are in contact as the pitch point. a. Arc of recess b. Arc of approach c. Arc of contact d. Arc of action

The __________ gears are used for changing the plane direction A. Spur B. Helical C. Worm D. Bevel

The amount of metal removed by honing process is less than A. 0.125 mm B. 0.225 mm C. 0.325 mm D. 0.425 mm

The amount of metal removed by honing process is less than __________. A. 0.125 mm B. 0.255 mm C. 0.015 mm D. 0.315 mm

The angle between the element of the face cone and its axis. a. Face angle b. Back angle c. Front angle d. Increment angle

The angle formed between the face and the clearance surface A. Wedge angle B. Rake angle C. Clearance angle D. Cutting angle

The common measuring tools are A. Steel rule B. Vernier caliper C. Micrometer D. All of these

The process of producing an extremely accurate highly finished surface. A. Lapping B. Buffing C. Polishing D. Honing

The purpose of annealing is to make a metal A. Harder B. Medium hard C. Softer D. Shiny

The surface finish of micrometer anvils in ______ rms. A. 1 B. 8 C. 16 D. 32

The theoretical profile of the thread for a length of one pitch in the axial plane on which design forms of both the external threads are based. a) Basic form of thread b) Effective thread c) Basic profile of thread d) Design form of external thread

The theory of mechanics of materials shows that the results from the octahedral shear stress theory and those from the maximum distortion energy theory are ________. a) more than b) less than c) relevant d) the same

The thickness should be multiplied by _________ to obtain the nominal wall thickness. a) 5/8 b) 8/5 c) 7/8 d) 8/7

The threaded length is about _________ times the diameters. a) 1.25 b) 1.5 c) 1.8 d) 2.0

The three keys are angularly spaced a) 60 b) 90 c) 120 d) 180

The ultimate strength of improved Plow Steel is in the range of a) 200 and 400 ksi b) 240 and 280 ksi c) 230 and 260 ksi d) 400 and 500 ksi

The value of allowable stresses which are generally used in practice for main transmitting shafts is a) 282 kg/cm2 b) 423 kg/cm2 c) 599 kg/cm2 d) 620 kg/cm2

To avoid excessive wear rate the recommended limiting pressure for 6 x 19 rope is ________ for cast steel. a) 700 psi b) 900 psi c) 1000 psi d) 1200 psi

To avoid excessive wear rate the recommended limiting pressure for 6 x 19 rope is ___________ for manganese steel. a) 2000 psi b) 2300 psi c) 2500 psi d) 3000 ps

Typical hub length falls between _________ where D is the shaft diameter a) 1.2D and 1.8D b) 1.25D and 2.4D c) 1.30 and 2.5D d) 1.35D and 3.0D

Up to what thickness of plate, edger preparation for welding is not needed? a) 2 mm b) 4 mm c) 8 mm d) 12 mm

What is the SAE specification number of molybdenum - chromium - nickel? A. 48xx B. 47xx C. 46xx D. 45xx

What is the lightest known metal? A. Mercury B. Steel C. Chromium D. Aluminum

What is the purpose of riser? A. Feed the casting at a rate consistent with the rate of solidification B. Act as a reservoir for molten metal C. Help feed the casting until all solidification takes place D. Feed molten metal from pouring basin to gas.

What is the recommended cutting speed range for bronze in fpm? A. 60/70 B. 200/250 C. 80/60 D. 100/110

What is used for absorbing some shock and vibration that may appear on one shaft and of preventing the occurrence of reversed stresses caused by the shaft deflecting at the coupling? a) Flange coupling b) Flexible coupling c) Rigid coupling d) None of these

What is used in main condenser to control electrolysis? A. Brass plate B. Aluminum plates C. Zinc plates D. Bronze plate

What is used to connect the shafts whose axes are intersecting A. Rigid coupling B. Oldham coupling C. Flexible coupling D. Universal coupling

What should be the maximum size of the fillet weld? a) 2 mm b) 3 mm c) 5 mm d) 7 mm

What should be the top rake angle to cut brass? A. 0° B. 15° C. 30° D. 45°

When measuring a drill for size, measure across the A. Flutes B. Margins C. Points D. Shanks

When the longitudinal seams are of lap riveted construction the minimum factor of safety is a) 5 b) 6 c) 7 d) 8

When the tensile strength of steel shell plates is not known it shall be taken as a) 379. 31 N/mm2 b) 565.71 N/mm2 c) 556.17 N/mm2 d) 671.55 N/mm2

Which of the following elements when large quantity is harmful to the ferrous metal? A. Sulfur B. Silicon C. Zinc D. Aluminum

Which of the following is not part of the headstock? A. Anvil B. Spindel C. Motor D. Back Pressure

Which of the following timber is used for sports goods? A. Deodar B. Mahogany C. Mulberry D. Sal

Which of the following type of fits used for involute spline? a) Close fit b) Press c) Sliding d) All of these

Which of the following type of threads recommended for general use? a) UNC b) UNEF c) UNF d) NC

_____ used in the production of flat surfaces on pieces too large or too heavy to hold in a shaper. a. Planer b. Shaper c. Grinder d. Shaver

21. The actual number of coil is _________ in a squared and ground ends. A. n B. n + 2 C. nd D. ( n + 1) d

24. Why does a clutch create noise? A. Clutch release bearings is either dry or defective B. Clutch spring is broken C. Clutch is faulty D. All of these

40. The minimum number of teeth on the smaller sprocket for moderate speeds is: A. 15 B. 17 C. 19 D. 21

40. The top surface of the tooth. a. Tooth face b. Tooth surfaces c. Top land d. Tooth flank

47. The maintenance of mechanical brake is: A. Expensive B. Economical C. Costly D. None of these

47. The ratio of the arc of approach to the arc of action A. Approach ratio B. Action ratio C. Recess ratio D. Contact ratio

48. Hub length usually vary from: a. 1.05 Ds to 1.7 Ds b. 1.25 Ds to 2 Ds c. 1.35 Ds to 2.5 Ds d. 1.35 Ds to 3.0 Ds

A ___________ gage is used to check the clearance between the mating parts A. Feeler B. Plug C. Tap D. Dial

Divided table planer has A. One table B. One housing C. Two tables D. Two housing

For a circular shaft subjected to torque the value of shear stress a) is uniform throughout b) has maximum value at the axis c) has maximum value at the surface d) is zero at the axis and linearly increases to a maximum value at the surface of the shaft

A common deoxidizer and cleanser of steel forming oxides and sulfates that are carried off in the slag A. Manganese B. Carbon C. Tungsten D. Sulfur

For fusion welding, efficiency shall be taken as equal to a) 80% b) 60% c) 90% d) 95%

For steel, the ultimate strength in shear as compared to in tension is nearly a) one-half b) one-third c) one-fourth d) the same

Friction between chip and tool may be reduced by A. Increased sliding viscosity B. Increased shear angle C. Use of low tool finish D. None of these

Friction between chip and tool may be reduced by A. Increasing sliding B. Increased shear angle C. Use of low tool finish D. None of these

A good general purpose deoxidizer which promotes fine grain in steel A. Copper B. Magnesium C. Molybdenum D. Silicon

A welding where an arc is struck between two tungsten electrodes into which a jet of hydrogen is directed a) Atomic hydrogen welding b) Electron beam welding c) Electro slug welding d) Flash welding

Hooke's law for an isotropic homogeneous medium experiencing one dimensional stress is known as a) Stress = E (strain) b) Strain = E (stress) c) (Force)(Area) = E (change in length/length) d) strain energy = E (internal energy)

In a planer the feed is provided A. At forward stroke B. At return stroke C. In between forward stroke D. In between return stroke

The size of a flat file is measured from ________ to heel of the file A. Edge B. Base C. Tip D. Body

The size of abrasive grains in abrasive a jet machining varies from A. 60 to 100 microns B. 10 to 50 microns C. 1 to 5 microns D. 20 to 40 microns

The size of try square is measured from the inner edge of stock to the end of its _______. A. Base B. Blade C. Edge D. Body

One of the factors involved in the choice of a grinding wheel is A. The kind of material to be ground B. The amount of stock to be removed C. The kind of finish required D. All of these

One of the following function is not performed by coating on the welding electrodes is to a) Increase the cooling rate b) Provide protective atmosphere c) Refuse oxidation d) Stabilize the arc

One of the following materials is commonly used for bearings. A. Aluminum B. Gun metal C. Steel D. Zinc

Safety features that must be placed and maintained at machine, black welding and foundry shops called: A. Walkway shops B. Safety goggles C. Safety notices D. Safety notices in Markers / Boards

Safety features that must be placed and maintained at machine, blacksmith, welding and foundry shop is called: A. Safety Goggle B. Walkway Guide C. Safety Notices in Markings D. All of these

Snagging is the form of ________ grinding. A. Hard B. Rough C. Soft D. Smooth

The ability of metal to withstand forces thus following a number of twist. a) shear strength b) bearing strength c) endurance limit d) deformation

Test is designed primarily for application to electric-welded tubing for detection of lack of penetration or overlaps resulting from flash removal in the weld a) Butt weld b) Paste c) Lap weld d) Double butt weld

The instrument used for reshaping a grinding wheel that is grounded or cut of round is called A. Wheel aligner B. Wheel dresser C. Wheel emery D. Wheel cutter

The instrument used to remove old packing from packing glands and stuffing boxes are called A. Packing tools B. Packing bits C. Gland box clearance D. Packing screw

The slenderness ratio of a column is generally defined as the ratio of its a) length to its minimum width b) unsupported length to its maximum radius of gyration c) length to its moment of inertia d) unsupported length to its least radius of gyration

The smallest area at a point of rupture of a tensile specimen divided by the original area is called: A. Percentage elongation B. Izod test C. Charpy test D. Percentage reduction of the area

The material for taps should always be _________ than the material of part to be tapped A. Harder B. Shorter C. Softer D. Longer

The material recovers its original dimensions when the load is removed, it is called: A. Annealed B. Brittle C. Elastic D. Plastic

The softening of metal by heat treatment and most commonly consist of heating the metal up to near motion state and then cooling it very slowly A. Annealing B. Indexing C. Knurling D. Soldering

The process applied to iron pipe, which retards corrosion A. Galvanizing B. Annealing C. Soldering D. Tinning

The recommended value of rake angle for machining aluminum with cutting tools made up of diamond tool. A. 0° B. 15° C. 35° D. 45°

The regular materials for wire rope are made of a) cast steel b) chromium c) wrought iron d) high-carbon steel

The relation between modulus of elasticity E and modulus of elasticity in shear G, bulk modulus of elasticity K and Poisson's ratio is given by a) E = Gu b) E = G (u + 1) c) E = 2g(u+1) d) E = 4G (1+2u)

The stroke positioning lever is located on the _________ of shaper. A. Lever B. Table C. Ram D. Chunk

The temperature at which this decrease of impact energy occurs is called: A. Recrystallization temperature B. Transition temperature C. Rupture temperature D. Ultimate temperature

The three moment equation may be used to analyze a a) tapered column b) continuous beam c) endurance limit d) tensile stress

The total number of instantaneous center for a mechanism of N links is equal to a) 2N b) (N-1)(N+1) c) 2N(N-1) d) N(N-1)/2

The usual ratio of forward and return stroke in quick return mechanism of shaping machine is A. 3:2 B. 3:1 C. 3:4 D. 3:5

The usual ratio of forward and return stroke in quick return mechanism of shaping machine is A. 3:2 B. 6:8 C. 3:1 D. 5:2

The value of allowable stresses which are generally used in practice for small, short shafts, countershafts is a) 282 kg/cm2 b) 599 kg/cm2 c) 650 kg/cm2 d) 750 kg/cm2

There are two different movements of the crank in: A. Simple indexing B. Compound indexing C. Differential indexing D. Angular indexing

Upsetting is the term used in one of the following operations A. Casting B. Drilling C. Forging D. Turning

Used as cast condition steel casting with carbon content less that __________ % C. A. 0.26 B. 0.15 to 0.18 C. 0.20 D. 0.25

Used for scribing large radius of circles and arcs A. Compass B. Protractor C. Ruler D. Trammel

Used for the attachment of levers, wheels and similar devices onto shafts for light-duty service. a) Clevis pins b) Cotter pins c) Dowel pins d) Taper pins

Used to permit lever shift for vertical travel of rail A. Ball crank B. Clamp plates C. Plunger knob D. None of these

What is it necessary to provide tolerance? A. It saves the labor charges B. It saves the material from wastage C. It saves the time D. All of these

What is the most common material for shafting? a) Wrought iron b) Cast iron c) Mild steel d) Aluminum

Which medium has highest value of dielectric strength? A. Glass B. Mica C. Porcelain D. Quartz

Which micrometer has no anvil A. Depth micrometer B. Outside micrometer C. Screw thread micrometer D. Digit micrometer

__________ no part of the headstock. A. Back gear B. Spindle C. Anvil D. Motor

. Process which involve the reduction of the metal from aqueous solution by replacement or by electrolysis are called: A. Pyrometallurgical Processes B. Electrometallurgical Processes C. Hydrometallurgical Processes D. Amalgamation Process

. Ropes are made of a) aluminum alloys b) copper c) bronze d) all of the above

. The ability of metal to resist being crushed is called a) shearing strength b) compressive stress c) torsional strength d) tensile strength

1. A heavy rotating body which serves as a reservoir for absorbing and redistributing kinetic energy. A. Gear B. Brakes C. Flywheel D. Fan

1. It is ideal for maximum quietness in sprocket drive operation to choose _____ or more teeth. A. 25 B. 26 C. 27 D. 28

10. It is advised that in rubber belts application mounting, it should have an initial tesion of _______ A. 18 to 24 B. 15 to 20 C. 12 to 15 D. 10

10. The depth of tooth space below the pitch circle A. Dedendum B. Working Depth C. Full Depth D. Tooth Depth

10. The desired between two surfaces having relatively sliding motion is known A. Lube oil B. Graphite C. Packing D. Lubrication

10. The smallest diameter on a gear tooth with which the mating gear makes contact. a. Contact ratio b. Contact diameter c. Contact stress d. None of these

10. The space between the teeth measured along the pitch circle. a. Tooth space b. Tooth thickness c. Backlash d. Tooth face

10. Type of brakes that are capable of stopping the motion of a machine member as well as retarding its motion A. Electrical brake B. Fluid brake C. Air brake D. Mechanical brake

11. A type of coil where the helical coil is wrapped into a circle forming an annular ring A. Volute spring B. Motor spring C. Hair spring D. Garter spring

11. In shear pin or breaking pin design, we may use the date experience by Link-Belt for 1/8 inch pins and the breaking stress is __________ ksi. A. 40 B. 55 C. 50 D. 48

11. It is considered as the simplest type of mechanical brake. A. Differential brake B. Block brake C. Band brake D. Brake shoe

12. A type of V-belts to use in a driving pulley with a speed of 260 rpm and transmitting 5 hp A. Type C belts B. Type B belts C. Type A belts D. Type D belts

12. The distance of a helical gear or worm would thread along its axis in one revolution if it were to move axially is called: A. Lead B. Thread C. Pitch D. Land

12. The friction devices used to connect shafts: A. Brakes B. Clutches C. Spring D. Holder

12. When the line of action of the load bisects the arc of partial bearing it is said to be: A. Eccentrically loaded B. Fit loaded C. Centrally loaded D. Surface loaded

13. A type of spring made in the form of dished washer A. Volute spring B. Motor spring C. Hair spring D. Beleville spring

13. Belt slip may take place because of: A. Loose load B. Heavy Belt C. Driving pulley too small D. All of these

13. It is the difference in the radii of the bearing and the journal A. Even clearance B. Clearance ratio C. Fit clearance D. Radial clearance

13. Range of helix angle on helical gear is _________. A. Less than 18 B. 15 - 25 C. 20 - 35 D. 35 - 40

13. The circular pitch in the normal plane. a. Circular plane b. Normal circular pitch c. Central plane d. Circular base pitch

13. The diameter of a circle coinciding with the top of the teeth of an internal gear A. Pitch diameter B. Root diameter C. Internal diameter D. Central diameter

13. ______ have curved teeth as in spiral bevels, but with zero angle. A. Spiral gears B. Zerol bevel gears C. Zero bevel gears D. Straight bevel gears

14. A circle coinciding with or tangent to the bottoms of the tooth spaces. a. Addendum circle b. Pitch circle c. Base circle d. Root circle

14. A gear with teeth on the outer cylindrical surface. A. Outer gear B. External gear C. Spiral gear D. Helical gear

14. A single ply leather belt running at a belt velocity of 300ft/min is likely to transmit ____ per inch of width A. 2.5 hp B. 3.0 hp C. 4.0 hp D. 5.0 hp

14. In laminated spring the strips are provided in different lengths for A. Economy B. Reduction in weight C. Improved appearance D. Space consideration of the

14. It is one in which the radii of the journal and the bearing are the same A. Clearance bearing B. Fitted bearing C. Full bearing D. Partial bearing

14. The overrunning clutch A. Should be oiled B. Should be repacked with grease C. Cannot be lubricated D. Contains no lubricant

14. The strength of the arc between the two sides of a gear tooth on the pitch circles unless otherwise specified. a. Face of tooth b. Circular thickness c. Tooth profile d. Face width

14. What will be the effect in bushing gears without backlash? A. Jamming B. Overheating C. Overload D. All of these

14. ______ is a gear that has an advantage of smoother tooth engagement quietness of operation greater and higher permissible speeds. A. Zerol bevel gear B. Straight bevel gear C. Hypoid bevel gear D. Spiral bevel gear

15. The amount by which the dedendum exceeds the addendum of the mating tooth. a. Tolerance b. Allowance c. Clearance d. Backlash

15. What is the density of a leather belt? A. 0.035 lb/in3 B. 0.0253 lb/in3 C. 0.046 lb/in3 D. 0.074 lb/in3

15. When the pair of bevel gears of the same size is on shafts intersecting at right angle, they are called _____ A. Mold gear B. Helix angle C. Miter gear D. Tangent gear

16. Height of tooth above pitch circle or radial distance between pitch circles and top land of the tooth is called: A. Top tooth B. Addendum C. Land D. Hunting

16. The smallest diameter on a gear tooth with which the mating gear makes: a. Idler b. Pinion c. Gear d. Central diameter

16. The use of gearbox provides: A. Gear leverage B. More torque C. More speed D. None of these

16. What is the density of flat belt rubber material? A. 0.055 lb/in3 B. 0.045 lb/in3 C. 0.0725 lb/in3 D. 0..0726 lb/in3

16. When a spring is made of ductile material, the curvature factor would be A. Zero B. Constant C. Unity D. Positive

16. When meshed with a gear, it is used to change rotary motion to reciprocating motion is: A. Gear Shaft B. Gear Tooth C. Gear Rack D. Gear Motor

17. In motor vehicles, it is very common practice to use a: A. Multiple clutch B. Hydraulic clutch C. Cone clutch D. Single plate clutch

17. Operating temperature of oil film ranges _____________ or less A. 120 F to 190 F B. 130 F to 160 F C. 140 F to 150 F D. 140 F to 160 F

17. The breaking strength of oak tanned belting varies from 3 to more than A. 5 ksi B. 6 ksi C. 7 ksi D. 8 ksi

17. The pitch plane, axial plane and transverse plane, all intersect at a point and mutually perpendicular to the: a. Principal reference plane b. Principal reference axis c. Principal reference point d. Principal reference line

18. The clutch finger is pushed by A. Clutch fork B. Clutch C. Clutch bearing D. None of these

18. The curve that satisfy the law of gearing. a. Tooth profile b. Stub curve c. Conjugate curve d. Involute curve

19. A conclusion repeatedly verified by experiments is _____ that the smoother the surface. A. Constant B. The greater the load capacity of the bearing C. None of these D. Variable

19. A hydraulic clutch doesn't incorporate a: A. Clutch plate B. Oil plate C. Vacuum plate D. None of these

19. For evenly distributed and uniform wear on each meshing gear tooth, the ideal design practice is to consider a: A. Wear resistance alloy addition to tooth gear B. Heat treatment of the gears C. Hardening of each D. Hunting tooth addition

19. If a big gear is moved by a small gear then the big gear A. Will not rotate B. Will rotate reverse direction C. Will not rotate fastly D. None of these

2. Also called eccentrically loaded bearing A. Full bearing B. Offset bearing C. Partial bearing D. Fitted bearing

2. Any perpendicular to a gear axis is called: a. Plane of action b. Plane of rotation c. Normal plane d. Transverse plane

2. Herringbone gears are gears which: A. Do not operate parallel shafts B. Have a line contact between the teeth C. Tend to produce and thrust on the shafts D. Consists of two left handed helical gears

2. It is recommended for high speed application that the minimum number of teeth in small sprocket should be: A. 12 to 20 B. 18 to 24 C. 16 to 32 D. 14 to 28

2. The frictional forces depend on coefficient of friction and: A. Torque B. Weights of object C. Normal Force D. Moment

2. Vertex distance is a term used in ____ gearing A. Spiral B. Worm C. Bevel D. Zerol

2. Which of the following is not a use of spring? A. Absorbs energy B. Measure weight C. Source of energy in clocks D. Measure the thickness

2. _____ is used to connect intersecting shafts, usually but not necessarily at 90 degrees A. Bevel gear B. Helical gear C. Spur gear D. Worm gear

20. According to W.M. Griffirth, the critical frequency of the spring should behold at least ________ times the frequency of application of a periodic load. A. 5 B. 10 C. 15 D. 20

20. Experience suggests that the most economical designs are obtained for a belt speed of: A. 2000 to 3000 fpm B. 3000 to 4000 fpm C. 4000 to 4500 fpm D. 4000 to 4000 fpm

20. The number of teeth per inch of pitch diameter and which gives some indications of the size of the gear teeth A. Module B. Pitch Circle C. Diametral Pitch D. Circular Pitch

20. Which of the following is considered an advantage for bearing materials? A. Conformability B. Embeddability C. Compatibility D. All of these

20. ______ are bevel gears mounted on intersecting shafts at angle other than 90 degrees. A. Right angle gears B. Half gears C. Inclined gears D. Angular gears

21. For leather belts, recommended speed is: A. 2000 to 3000 fpm B. 4000 to 5000 fpm C. 6000 to 7500 fpm D. 7000 to 8000 fpm

21. For thrust bearing the speed at moderate operating conditions is A. 50<Vm>200 fpm B. 50<Vm>220 fpm C. 50<Vm>250 fpm D. 50<Vm> 290 fpm

21. In gear design, the ratio of pitch diameter, in inches to the number of teeth is called: A. Module B. Diametral Pitch C. English Module D. Circular Pitch

21. The pitch angle is 90 degrees that is, the pitch has become a plane A. Atten gear B. Crown gear C. Cool gear D. Hiphap gear

21. The ratio of the number of teeth to the number of millimeters of pitch diameter. a. Diametral pitch b. Module c. Circular pitch d. Base pitch

21. They are cylindrical in form operate on parallel axes and have straight teeth parallel to the axis. a. Helical gears b. Bevel gears c. Spur gears d. Worm gears

22. For fabric belts, recommended speed is: A. 2000 to 3000 fpm B. 2000 and more fpm C. 3000 to 4000 fpm D. 4000 to 4500 fpm

22. The diametral pitch circulated in the normal plane and is equal to the pitch dived by the cosine of the helix angle a. Normal diametral plane b. Normal diametral pitch c. Normal plane d. Normal axial pitch

22. The efficiency of hydraulic braking system is: A. About 90 percent B. 60-80 percent C. 50-60 percent D. 40-50 percent

22. The solid length of squared ends is A. (n+3)d B. (n+1)d C. np D. n + 2

22. ____ is used to transmit power between non-intersecting shafts, nearly always at right angle to each other A. Spur gear B. Ordinary gear C. Bevel gear D. Worm gear

23. In high speed, centrifugal blowers, it has been observed that the arc of contact reduced from 180 deg at rest to _______ in motion A. 90 deg B. 95 deg C. 100 deg D. 110 deg

23. Safe working stresses for common gear materials operating at very low velocities are usually assumed to be _____ the ultimate strength. a. One-fourth b. One-third c. One-half d. Two-third

23. That portion of the face width that actually comes into contact with mating teeth, as occasionally one member of a pair of gears may have a greater face width than the other is called: a. Effective face width b. Effective tooth face c. Effective tooth thickness d. Effective tooth flank

23. The 300 series bearing is called A. Heavy B. Light C. Medium D. None of these

23. The SAE recommends an angle of ________ for cone clutches faced with leather or asbestos or having cork inserts: A. 7.5 o .B. 9.5 o C. 12.5o D. 14.5o

23. The distance of the tooth, which is equal to the sum of the addendum and dedendum is known as: A. Full depth B. Whole depth C. Working depth D. Dedendum

23. The free length of ground ends is A. np + 3d B. np + 2d C. np + d D. np

23. What are the two types of construction for the worm? A. Shell and cylindrical B. Shell and zigzag C. Shell and integral D. Tube and integral

24. A type of roller bearing in which the balls are assembled by the eccentric displacement of the inner ring. A. Shallow-groove ball bearing B. Self-aligning ball bearing C. Filling-slot ball bearing D. Deep-groove ball bearing

24. It is used to change rotary motion to reciprocating motion. A. Helical Gear B. Rack Gear C. Worm Gear D. Spur Gear

24. The recommended initial tension of belt is: A. 75 lb/in of width B. 71 lb/in of width C. 73 lb/in of width D. 80 lb/in of width

24. To avoid charring by the heat of friction, rawhide gears should not be operated of pitch line velocities greater than _____ a. 2500 fpm b. 3000 fpm c. 35000 fpm d. 4000 fpm

24. the shortest length for the spring during normal operation A. compressed length B. operating length C. solid length D. free length

25. The contact ratio of a pair of mating spur gears must be well over ____ to insure a smooth transfer of load from one pair of teeth to the next pair. A. 1.0 B. 2.0 C. 3.0 D. 4.0

25. The outside diameter of the hubs of larger gears should be _____ the bore for steel. a. 1.5 times b. 1.6 times c. 1.7 times d.1.8 times

25. The recommended net belt pill for rubber belt is: A. 11.34 lb/ply per inch of width B. 13.75 lb/ply per inch of width C. 16.35 lb/ply per inch of width D. 20.34 lb/ply per inch of width

25. Tooth width measure along the chord at the pitch circle is known as: A. Flank B. Face Width C. Width of face D. Chordal Thickness

25. What faults develop in the brakes? A. Brakes do not work properly B. Brakes do not disengage C. Brake make noise D. All of these

25. When it rolls along the outer side another circle, is called: a. Cycloid b. Hypocycloid c. Epicycloid d. Trochoid

25. Which of the following is not a type of ball bearing? A. Shallow-groove ball bearing B. Self-aligning ball bearing C. Fillet-slot ball bearing D. Deep-groove ball bearing

25. Zero axial thrust is experienced in: A. Helical gears B. Herringbone gears C. Spiral gears D. Bevel gears

25. the relationship between the force exerted by a spring and its deflection is called A. spring index B. spring rate C. wahl's factor D. Spring angle

26. A gear with teeth on the outer cylindrical surface. a. Annular gear b. External gear c. Idler d. Spur gear

26. As general rule contact ratio should not be less than: A. 1:1 B. 1:2 C. 1:3 D. 1:4

26. Bevel gears are used to transmit rotary motion between two shafts whose axes are: A. Parallel B. Non-coplanar C. Non-intersecting D. None of these

26. If two intersecting shafts are to be belt connected, how many guide pulley/s is used? A. 1 B. 2 C. 3 D. 4

26. Steel ball for ball bearing are manufactured by A. Casting B. Cold headling C. Rolling D. Turning

26. The couple diameter of the hubs of larger gears should be _____ the bore for cast iron. a. 1.5 times b. 1.8 times c. 2.0 times d. 2.5 times

26. The ration of the mean diameter of the spring to the wire diameter is called A. Spring index B. Spring ratio C. Spring rate D. Spring constant

26. Which of the following types of brakes are also changed while replacing brake lining? A. Brake shoes B. Shoe rivets C. Shoe spring D. Block brake

26. _______ is the difference of addendum and dedendum, which is equivalent to the whole depth less working depth. A. Fillet Space B. Fillet Radius C. Clearance D. Backlash

27. For moderate speed of mating gears, the ideal ratio contact is: A. 1.25 - 4.00 B. 1.20 - 1.45 C. 1.00 - 1.30 D. 1.35 - 1.45

27. Helix angles of _____ degrees are preferred for single helical gears. a. 10 and 18 b. 12 and 20 c. 15 and 23 d. 18 and 28

27. In hydrodynamic bearings A. The oil film pressure is generated only by the rotation of the journal B. The oil film is maintained by supplying oil under pressure C. Do not need external supply of lubricant D. Grease is used for lubrication

27. Refers to the axial distance from a point on one coil to the corresponding point on the next adjacent coil. A. Lead B. Spring distance C. Pitch D. Spring deflection

27. Surface roughness on active profile surfaces on gear is about ____ pitch A. 30 B. 32 C. 34 D. 36

27. That surface of the tooth, which is between the pitch circles to the top of the tooth is known as _____. a. Face width b. Tooth flank c. Face of tooth d. Top land

27. Two shafts at right angles to each other may be connected by the _____ arrangement A. Half turn B. Three-fourths turn C. One turn D. Quarter turn

28. Gears for watches are generally manufactured by: A. Die casting B. Machining on hobber C. Machining on a gear shaper D. Stamping

28. That type of oil is used in the hydraulic brake system? A. Engine oil B. Gear oil C. Brake oil D. Clutch oil

28. The distance a helical gear or worm would thread along its axis in one revolution if it free to move axially is called: A. Length of action B. Length of contact C. Land D. Lead

28. The length of the teeth in axial plane. a. Face of tooth b. Face width c. Circular pitch d. Chordal thickness

29. It is used to connect pulleys to convey materials by transmitting motion and power A. Rope B. Wires C. Belt D. Flat

29. The principal parts of a hydraulic brake system are the master cylinder and the: A. Multi-cylinder B. Wheel cylinder C. Brake wire D. Brake shoe

29. The rated life of a bearing changes A. Directly as load B. Inversely as fourth power of load C. Inversely as cube of load D. Inversely as square of load

29. The surface of the tooth between the pitch cylinder and the addendum cylinder. a. Face b. Flank c. Top land d. Bottom land

29. What is the spring index of valve and clutch? A. 3 B. 5 C. 7 D. 9

3. Consider a maximum safe center distance of should be _____ pitches. Very long center distance caused catenaries tension in the chain A. 70 B. 80 C. 90 D. 100

3. Friction devices used to regulate the motion of bodies and with clutches A. Rollers B. Brakes C. Babbitt D. Holders

3. In an involute gear, _____ is the pitch on the base circle or along the line of action. a. Base circle b. Normal base pitch c. Base pitch d. Pitch gear

3. Wahta type of bearing which totally encloses the shaft? A. Offset bearing B. Central bearing C. Babbitt bearing D. Full bearing

30. A crossed belt wider than ______ inches should be avoided A. 7 B. 8 C. 9 D. 10

30. In case of cross helical worm, the axes of two shafts are: A. Parallel B. Intersecting C. Non-parallel D. Non-parallel/non-intersecting

30. Refers to the space between adjacent coils when the spring is compressed to its operating length A. Coil allowance B. Coil tolerance C. Coil clearance D. None of these

30. What type of gear is used for high- speed operation? A. Helical B. Spur C. Bevel D. Worm

31. If the pulley ratio is 3:1 or more, the reduction should be: A. 25% B. 50% C. 75% D. 95%

31. The maximum tensile stress in the gear tooth fillet. a. Gear stress b. Contact stress c. Fillet stress d. Fillet curve

31. The most practical spring designs produce a pitch angle is less than A. 12° B. 15° C. 20° D. 25°

31. Well proportion commercial gears with a pitch line velocity of less than _____ will normally not score if they have a reasonably good surface finish and are properly lubricated. A. 6000 fpm B. 6500 fpm C. 7000 fpm D. 8000 fpm

32. A machine part that supports another part, which rotates, slides or oscillateds in or on it A. Journal B. Bearing C. Roller D. Casing

32. A reverted gear train is one in which: A. The direction of rotation of first and last gear is opposite B. The direction of rotation of first and last gear is the same C. The first and last gear are essentially on separate but parallel shafts D. None of these

32. Experimental data from actual gear unit measurements are seldom repeatable within a plus or minus ______ band A. 5% B. 10% C. 15% D. 20%

32. In order to get benefit helical-gear action the face width should be at least _____ the axial pitch. a. Once b. Twice c. Thrice d. Minimum

32. That surface which is between the pitch circle and the bottom land is called: a. Flank of tooth b. Face of tooth c. Face of width d. Fillet of tooth

32. The advantage of flat belt is that: A. It can be used with high- speed drives B. It can be used in dusty and abrasive environments C. It allows long distances between shafts D. All of these

32. What type of gear, which can transmit power at a certain angle? A. Helical Gear B. Worm Gear C. Bevel Gear D. Herringbone Gear

32. Which of the following is also used in the suspension system? A. Shock absorbers B. Brake shoes C. Cams D. Block brakes

33. For best running conditions of a gear, the contact ratio should be about: A. 1.25 to 1.40 B. 1.20 to 1.45 C. 1.34 to 1.56 D. 1.62 to 1.45

33. Pitting is a function of the Hertzian contact stresses between two cylinders and is proportioned to the square root of the ______. A. Applied load B. The contact stresses C. The stress D. Impact

33. The best leather has an ultimate strength of about A. 3000 psi B. 4000 psi C. 5000 psi D. 6000 psi

33. Which of the following materials is used for leaf and coil spring? A. AISI 3140 B. AISI 3150 C. AISI 3240 D. AISI 4063

35. The density of a balata belt is: A. 0.031 lb/in3 B. 0.42 lb/in3 C. 0.51 lb/in3 D. 0.61 lb/in3

35. The helical angle that a helical gear tooth makes the gear axis. a. Helix angle b. Lead angle c. Pressure angle d. Tooth angle

35. The path of contact involute gears where the force/power is actually transmitted, it is a straight imaginary line passing through the pitch point and tangent to the base circle is known as _____. A. Principal Reference Plane B. Pitch point C. Front Angle D. Line of Action

35. Which of the following is a bearing material? A. Babbitt B. Bronze C. Plastics D. All of the above

35. Which of the following is mounted inside the clutch? A. An engine B. Gear box propeller shaft C. Both the rear axle D. All of these

35. _______ is the average tangential force on the teeth is then obtained from the horsepower A. Total load B. Separation load C. Pressure load D. Tangential load

37. According to the Goodrich company, the permissible net belt pull is ____ that it gives a simple means for quick estimation A. 13.75 lb/ply per inch of width B. 15.75 lb/ply per inch of width C. 16.75 lb/ply per inch of width D. 17.75 lb/ply per inch of width

37. Conrad bearing is also known as A. Needle bearing B. Ball bearing C. Roller bearing D. Tapered bearing

37. Fillet radius in machine parts is usually introduced to: A. Improve the look of the patch B. Reduce concentration of stress and extend life of the parts C. Avoid obstruction D. Necessary to lessen casting weight

37. The diameter of a circle coinciding with the top of the teeth on an internal gear. a. Pitch diameter b. Internal diameter c. Root diameter d. Dedendum diameter

38. ______ is caused by foreign matter such as grit or metal particles or by a failure of the oil film at low speed A. Suction B. Scoring C. Abrasion D. Corrosion

39. The service factor of heavy shock, rolling mill and rock crushes. a. 1.25 - 1.35 b. 1.35 - 1.50 c. 1.50 - 1.80 d. 1.75 -2.00

39. _______ are machine elements that transmit motion by means of successively engaging teeth. A. Sprockets B. Gears C. Tooth belt D. Annular

4. All are functions of lubricating oil except A. Adhesion B. Corrosion prevention C. Act as coolant D. To tighten the load

4. It refers to the length of pitch cone in a bevel gear A. Cone center B. Lead C. Center distance D. Pitch

4. Recommended hardness of pinion for helical/herringbone gear tooth should be _____ BHN point to sustain life: A. 50-58 B. 48-65 C. 40-50 D. 30-60

4. The base pitch in the normal plane. a. Normal pitch b. Normal base pitch c. Axial plane d. Central plane

4. The overall length of the spring when it is compressed until all adjacent coils touched. A. Compressed length B. Free length C. Solid length D. None of these

4. The part of the total frictional energy that is stored in the brake parts, principally in the drum or disk has been estimated at __________. A. 56% up B. 86% up C. 90% up D. 75% up

4. The radial distance from the addendum circle to the working depth circle. a. Total depth b. Full depth c. Whole depth d. Working depth

4. The recommended lubricant for the chain drive operation is: A. SAE 4140 B. Petroleum Oil C. Moly slip D. Heavy grease

40. Which of the following materials to be utilized to reduce cost in the manufacture of large worm gears? A. Alloyed Aluminum B. Bronze Rim with Cast Iron Spider C. Cast Iron Rim with Bronze Spider D. All of these

40. _______ is a surface fatigue of greater extent than pitting that is the flakes are much larger. This type of failure occurs in surface-hardened teeth. A. Abrasion B. Corrosion C. Spalling D. Scoring

41. A circle bounding the bottom of the teeth A. Addendum Circle B. Addendum Cylinder C. Pitch Circle D. Dedendum Circle

41. Buckingham says that mating phenolic gears with steel of BHN less than ____ leads to excessive abrasive wear A. 200 B. 300 C. 400 D. 500

41. Height of tooth above pitch circle or the distance between the pitch circle and the top of the tooth is called: A. Dedendum B. Addendum C. Working depth D. Total depth

41. It is used to stop the motion of a moving object. A. Clutch B. Brakes C. Band clutch D. Band brake

41. The 400 series bearing is called: A. Light B. Medium C. Heavy D. Extra heavy

41. The circle containing the bottoms of the tooth spaces is called: a. Addendum circle b. Base circle c. Pitch circle d. Root circle

41. The minimum number of teeth on the smaller sprocket for high speeds is: A. 19 B. 21 C. 23 D. 25

41. The surface of the gear between the fillets of adjacent teeth. a. Space width b. Backlash c. Bottom land d. Tooth space

41. Typical hub length falls between A. 1.25D to 2.4D B. 1.25D to 5D C. 1.3 D to 3.4D D. D to 7D

42. For maximum quietness, use sprockets with _____ or more teeth A. 21 B. 23 C. 25 D. 27

42. The circle that bounds the outer ends of the teeth. A. Addendum circle B. Dedendum circle C. Pitch circle D. Root circle

42. The distance of a helical gear or worm would thread along its axis one revolution of it was free to move axially. a. Lead b. Helix c. Length of action d. Line of action

42. The effectiveness of the brake may greatly decrease shortly after it begins to act continuously, a phenomenon called: A. Creep B. Pressurized C. Fade D. Worn-out

42. ____ is the extra tooth in gear, which is used to distribute the wear more evenly. A. Hunting tooth B. Tooth profile C. Dummy tooth D. Add tooth

43. A ______ formed by elements, which are perpendicular to the elements of the pitch cone at the large end. A. Cone Distance B. Back Cone C. Root Cone D. Cone Center

43. Attached to the rear end of the crankshaft is the A. Vibration damper B. Flywheel C. Drive pulley D. Timing gear

43. If the length over diameter of the bearing is unity, it is also known as A. Long bearing B. Short bearing C. Medium bearing D. Square bearing

43. The angle through which the gear turns from the time a given pair of teeth are in contact at the pitch point until they pass out the mesh A. Pressure angle B. Angle of action C. Angle of approach D. Angle of recess

43. The path of contact in involute gears, it is straight line passing through the pitch point and the tangent to the base circles. a. Length of action b. Line of action c. Line of contact d. None of these

43. The usual ratio of miter gear is: a. 1:1 b. 1:2 c. 1:3 d. 1:4

44. A bearing in which the length ratio Length/diameter is greater than 1. A. Short bearings B. Long bearings C. Square bearings D. Medium bearings

44. A bevel gear of the same size mounted on a shaft at 90 degrees is called: A. Crown Gear B. Spur Gear C. Angular Gear D. Miter Gear

44. Clutches which are designed to transmit torque for one direction of rotation of the driver and then free- wheel or transmit essentially no torque when the direction of the driver rotation is reversed. A. Magnetic clutches B. Trip clutches C. Overrunning clutches D. Slip clutches

44. Flywheel is also known as A. Steering wheel B. Front wheel C. Balance wheel D. Rear wheel

44. The angle between the element of the face cone and its axis equals pitch angle plus addendum angle. a. Cutting angle b. Face angle c. Pitch angle d. Front angle

44. The angle through which the gear turns from the time a particular pair of teeth comes into in contact until they go out the contact. A. Pressure angle B. Angle of action C. Angle of approach D. Angle of recess

44. The distance on involute line of action through which the point of contact moves during the action of the tooth profile. a. Length of action b. Line of action c. Line of contact d. None of these

44. _____ is a gear that has teeth cut on the inside of the rim instead of on the outside A. External gear B. Involute gear C. Stub gear D. Annular gear

45. Gearing in which motion or power that is transmitted depends upon the friction between the surfaces in contact A. Bevel Gears B. Spur Friction wheels C. Evans Friction Cones D. Friction Gearing

45. The product of absolute viscosity and rotational speed divided by the unit loading. A. Section modulus B. Bearing modulus C. Shear modulus D. All of the above

45. The ratio of pitch diameter in millimeters to the number of teeth. a. Addendum b. Diametral pitch c. Module d. None of these

45. The reason for noise at the time of engaging brake: A. Back plate being loose or bent B. Brake shoe being loose or bent C. Brake drum could be defective D. All of these

45. The tension ratio of V-belt is: A. 2 B. 3 C. 4 D. 5

45. To estimate fouling, let the minimum differences in tooth numbers between the internal gear and pinion be _____ for 14.5 deg involute depth A. 10 teeth B. 12 teeth C. 14 teeth D. 16 teeth

45. What energy is stored in flywheels? A. Kinetic energy B. Internal energy C. Potential energy D. Rest energy

46. A plane normal to the tooth surfaces acts a point of contact and perpendicular to the pitch plane. a. Axial plane b. Central plane c. Normal plane d. Diametral

46. The loss pair of spur, helical or bevel gears in an ordinary train should not exceed: A. 4% B. 6% C. 2% D. 5%

46. The portion of the tooth surface adjacent to the involute lying inside a radial line passing through an imaginary intersection of an involute and the base circle/ a. Excessive cut b. Over cut c. Under cut d. None of these

46. What is the function of the flywheel? A. To keep the speed fluctuation within the desired limits B. To limit the momentary rise or fall in speed during sudden changes of load C. To keep the angular advance or retardation within prescribed limit as compared with a perfectly uniform angular speed D. All of the above

46. Wheels are sometimes used for the transmission of high power when an approximately constant velocity ratio is desired is called: A. Bevel Cones B. Friction Gearing C. Spur Friction Wheels D. Evans Friction Wheels

46. When the vehicle runs brake drum becomes hot because of friction of the shoe. This fault is known as _______ A. Brake lining B. Brake winding C. Back plate D. None of these

47. In many flywheel designs, about how many percent of the weight is concentrated in the hub and arms A. 20 B. 30 C. 35 D. 45

47. In spur gearing system, the preferred pressure angle is: a. 14- ½ deg b. 20 deg c. 22- ½ deg d. 25 deg

47. The coefficient of friction between the belt and the pulley for leather belt running on steel pulley is: A. 0.1 B. 0.2 C. 0.3 D. 0.5

47. The frustums of two cones used in a manner to permit a variation of velocity ratio between two parallel shafts are called: A. Evans Friction Cones B. Bevel Cones C. Spherical Cones D. Friction

47. The radial distance between the center of the bearing and the displaced center of the journal is called. A. Concentricity B. Eccentricity C. Embeddability D. None of the above

47. The typical helix angle ranges from _____ to _____ A. 10 deg to 12 deg B. 12 deg to 15 deg C. 14 deg to 20 deg D. 15 deg to 25 deg

48. A large rotary machine part whose function is to store energy and to produce uniform angular velocity of the shaft or reciprocating engine. A. Cam B. Idler C. Flywheel D. Chuck

48. If gears cannot, parallel shafts, they are called: A. Cycloidal Gears B. Helical Gears C. Spur Gears D. Toothed Gears

48. In a pair of gear, it is the plane that contains two axes in a simple gear; it may be any plane containing the axes and the given point. A. Axial plane B. Central plane C. Normal plane D. Transverse plane

48. The angle subtended by the arc on the pitch equal in the length to the circular pitch. a. Pitch angle b. Pressure angle c. Helix angle d. Lead angle

48. What is the most common defect of clutch? A. Slip of the clutch B. Clutch does not disengage properly C. Clutch creates noise D. All of these

48. Which of the following is an example of solid lubricant? A. Molybdenum disulfide B. Graphite C. Tungsten disulfide D. All of the above

48. _____ is the advance of the tooth in the face width divided by circular pitch. A. Face contact ratio B. Speed ratio C. Profile ratio D. Advance ratio

49 The service factor for heavy shock is: a. 1 to 1.25 b. 1.25 to 1.50 c. 1.50 to 1.75 d. 1.75 to 2.0

49. A massive wheel, which by its inertia assists in securing uniform motion of machinery by resisting sudden changes of speed. A. Linkage B. Crank C. Planetary gears D. Flywheel

49. Of meshing gears, _____ is the point of tangency to the pitch circle. a. Pitch point b. Pitch of contact c. Pitch d. Reference point

5. A circle coinciding with a tangent to the bottom of the tooth spaces A. Pitch Circle B. Root Circle C. Base Circle D. Outside Circle

5. In designing gears of power transmission, consider and efficiency of _____ as recommended. A. 96% or more B. 89% or more C. 85% or more D. 98% or more

5. It is considered semi-solid lubricant A. Lube oil B. Graphite C. Grease D. All of these

5. The base pitch in the axial plane. a. Axial base pitch b. Axial pitch c. Normal pitch d. Base pitch

5. The total depth of a tooth space equal to addendum plus dedendum also equal to working depth plus clearance. a. Full depth b. Working c. Whole depth d. None of these

5. Type of leather belt being applied with waterproof cement is called: A. Combination of Oak/Mineral Tanned B. Oak Tanned C. Mineral Tanned D. All of these

50. A single ply leather belt running at a belt velocity of 300 ft/min is likely to transmit _____ per inch of width A. 2.5 hp B. 3.0 hp C. 4.0 hp D. 5.0

50. In a pair of gears, it is the plane perpendicular to the axial plane and tangent to the axial plane and tangent to the pitch surfaces. a. Normal plane b. Central plane c. Pitch plane d. Tangent plane

50. In practice, it is found that arcs less than ______ required high belt tensions. A. 155o B. 165o C. 175o D. 180o

50. The function of a flywheel is to A. Complete the unusual stroke B. Operated the engines C. Keep the engines weight light D. None of theses

50. The hardness of a helical and herringbone teeth cut after heat treatment will generally fall between the limits of ______. A. 210 and 300 Brinell B. 147 and 300 Brinell C. 230 and 320 Brinell D. 220 and 320 Brinell

50. Which of the following shortcoming in the cone clutch because of which the clutch is not used? A. Clutch slips quickly B. It occupies more space C. Adjustment has to be done early D. All of these

6. A circle the radius of which is equal to the distance from the gear axis to the pitch point A. Pitch Circle B. Root Circle C. Base Circle D. Outside Circle

6. In a worm gear, _____ is a plane perpendicular to the gear axis and contains the common perpendicular of the gear and the worm axis. a. Central plane b. Normal plane c. Axial plane d. Traverse plane

6. In general, steel spring are made of relatively high carbon steel usually A. More than 0.5% B. 5% C. Less than 0.5% D. 10%

6. It is a condition in generated gear teeth when any part of the fillet curve lies inside of a line drawn to the working profile as the lowest point. a. Medium cut b. Under cut c. Over cut d. Hidden cu

6. Metal that assists lubrication or lubricant in itself A. Zinc B. Antimony C. Babbit D. Lead

6. The brake capacity to absorb energy is known as: A. Energy B. Resistance brake C. D. Braking torque

6. The cone formed by the elements of bottom lands A. Face cone B. Root cone C. Back cone D. Rake cone

6. The surface of the gear between the fillets of adjacent teeth is called: A. Bottom land B. Flank C. Top land D. Flank of tooth

6. What type of leather belting should be used at an ambient temperature above 149 deg F and possible acid liquid coming in contact with the belt? A. Mineral Tanned B. Combination of Oak C. Oak Tanned D. None of these

7. An imaginary cone whose elements are perpendicular to the pitch cone elements at the large end of the tooth. A. Front cone B. Side cone C. Rear cone D. Back cone

7. Bevel gears subjected to corrosion and lightly loaded are usually made of: A. Bronze B. Brass C. Duralumin D. All of these

7. If the band warps partly around the brake wheel or drum and brake action is obtained by pulling the band tight onto the wheel. This type of brake is known as: A. Block brake B. Band brake C. Clutch D. Centrifugal brake

7. It is recommended not to have a direct drive and drive sprockets if the raio of their teeth exceeds _______ use two or more combination A. 10 times B. 8 times C. 5 times D. 6 times

7. Ratio of pitch diameter to the number of teeth A. Diametral Pitch B. Module C. Contact Ratio D. Helical Overlap

7. The curve formed by the path of a point on the extension of the radius of a circle as it rolls along the curve or line. a. Cycloids b. Epicycloids c. Hypocycloid d. Trochoid

7. The length of the chord subtended by the circular arc is called: a. Backlash b. Face width c. Chordal thickness d. Curve thickness

7. When heat treated wire is coiled cold, it should be stress relieved for bending stresses after cooling by being heated at some at what temperature? A. 400F B. 500F C. 600F D. 700F

7. Which of the following materials is unsuitable as a bearing? A. Teflon B. Low carbon steel C. Cast iron D. Nylon

8. A kind of gear used for duty works where a large ratio of speed is required and are extensively used in speed reducer is known as: A. Worm Gear B. Spiral Gear C. Helical Gear D. Bevel Gear

8. A plane perpendicular to the axis plane and to the pitch plane. a. Norma plane b. Pitch plane c. Tangent plane d. Transverse plane

8. Aerostatic bearing is one in which A. The lube oil is supplied under pressure B. Lube oil is not pressurized C. There is no lube oil D. Bearing is lightly loaded

8. Flat leather belting not recommended for use in a speed in excess of ________ fpm A. 3600 B. 4800 C. 6000 D. All of these

8. If a set of spur gears are made installed and lubricated properly, they normally may be subjected to failures like: A. Tooth spalling B. Tooth penning C. Pitting D. Shearing

8. The brake lining operating at temperature _____, sintered mixtures containing ceramics are used: A. 750 F to 1000 F B. 560 F to 900 F C. 800 F to 1200 F D. 400 F to 789 F

8. The height from the top of the tooth to the chord subtending the circular thickness arc. a. Curve thickness b. Chordal thickness c. Chordal addendum d. Chordal dedendum

8. _____ is one whose tooth profiles consists of straight elements that converge to a point at the cone center. A. Circular bevel gear B. Straight bevel gear C. Path bevel gear D. Herringbone gear

9. A hard drawn also 80% reduction but it is made of high-grade steel A. Music wire B. Oil tempered wire C. Song wire D. Chromium- silicon

9. At the same thermal and minimum film, thickness limitation as sleeve A. Ball bearing B. Roller bearing C. Thrust bearing D. Full bearing

9. Hydrodynamic brake is the major type of: A. Air brake B. Fluid brake C. Electric brake D. Spot brake

9. The desired quality in gear is A. Quietness B. Durability C. Strength D. All of these

9. The length of the arc of the pitch circle between the centers or other corresponding points of the adjacent teeth. a. Circular pitch b. Diametral Pitch c. Base pitch d. Normal pitch

9. V-belts operate efficiently at speed of about: A. 4500 fpm B. 4400 fpm C. 4200 fpm D. 3600 fpm

9. Which of the following is an example of rectilinear translation? A. Locomotive wheels B. Rack gear C. Piston of an engine D. Jack

A Pantograph is a mechanism having a) higher pairs b) lower pairs c) rolling pairs d) spherical pairs

A ______ is used to be test the accuracy of holes A. Snap gage B. Ring gage C. Plug gage D. Depth gage

A ________ member that carries loads transverse to its axis. a) structure b) column c) beam d) frame

A _________ consists of a slide and swivel vise mounted on the compound rest in place of the tool post. A. Milling attachment B. Relieving attachment C. Grinding attachment D. Reaming attachment

A _________ consists of hardened and ground steel bar in which two hardened and ground of the same diameter are set. A. Caliper B. Gage block C. Sine bar D. Micrometer

A _________ is a cylinder with teeth resembling those of acme thread. a. Pinion b. Spur c. Worm d. Bolt

A _________ is a kind of thread in which the width of the thread and the space between threads are approximately equal. a) square thread b) acme thread c) buttress thread d) whit worth thread

A _________ is reciprocating type tool used for machining flat, cylindrical and irregular surfaces. A. Shaper B. Planer C. Puncher D. Slotter

A __________ is one thicker in proportion to its length than the involute tooth. a. Hypoid b. Cycloidal tooth c. Stub tooth d. Spiral

A ___________ is a thread that has a lead equal to the pitch. A. Right hand thread B. Left hand thread C. Single thread D. Multiple head

A cold chisel is made of: A. Cast Iron B. German Silver C. High Carbon Steel D. High Speed Steel

A collimated light beam is used for producing heat in a) Laser welding b) MIG welding c) Plasma welding d) TIG welding

A common rule is to make the rivet hole diameter from ________ for rivets in single or double shear. a) 1.2 t to 1.4 t b) 1.2 sq.rt t to 1.4 sq.rt t c) 1.3 sq.rt t to 1.6 sq.rt t d) 1.4 sq.rt t to 1.8 sq.rt t

A coupling that employs a fluid to provide angular flexibility between the input and output shafts. a) Rigid coupling b) Flexible coupling c) Hydraulic coupling d) Oldham coupling

A coupling that is composed of two slotted members, which are connected by a continuous steel spring, and lies in the slots. a) Ajax coupling b) Falk coupling c) Lord coupling d) Slip coupling

A coupling that transmits power via the frictional forces induced by pulling the flanges toward each other over slotted tapered sleeves is known as a) Flange coupling b) Flange compression coupling c) Ribbed compression coupling d) Rigid coupling

A cutting tool used to finish internal and external surfaces by the use of a cutter called broach, which has a series of cutting edges of teeth a. Lathe Machine b. Broaching Machine c. Planer d. Shaper

A cylinder in which the ratio of the wall thickness to the inside diameter is ___________ may be called a thin cylinder a) less than 0.05 b) less than 0. c) more than 0.05 d) more than 0.07

A cylindrical bar of steel with threads formed around it and grooves or flutes running lengthwise in it, intersecting with the threads to form cutting edges. It is used to cut internal threads. A. Grooves B. Lap C. Tap D. Flute

A cylindrical bar or steel with threads formed around it and grooves or flutes running lengthwise in it, intersecting with the threads to form cutting edges. It is used to cut internal threads. a) Groove b) Lap c) Tap d) Flute

A device used to prevent leakage of media. A. Seal B. Packing C. Teflon D. Graphite

A drill bit has A. No flutes B. 2 flutes C. 3 flutes D. 4 flutes

A ductile fracture is characterized by A. Appreciable plastic deformation prior to propagation of crack B. Fragmentation into more than two pieces C. Negligible deformation D. Rapid rate for crack propagatio

A feather key is one of the following types of a) sunk b) tapered c) parallel d) tangent

A female mating member that forms a groove in the shaft to which the key fits. a) Key path b) Key way c) Key holder d) Key hole

A fillet weld whose size is equal to the thickness of the inner joint member is called a) Butt joint b) Butt weld c) Tack weld d) Full-fillet weld

A fine grained salty silica rock used for sharpening edge tools. A. Eutectoid B. Austenite C. Oilstone D. Pearlite

A fine grained, salty silica rock used for sharpening edged tools. A. Oilstone B. Surface grinder C. Rocky oil D. None of these

A fusion welding process in which the welding heat is obtained from an electric arc set up either between the base metal and one electrode or between to electrodes. a) Arc welding b) Gas welding c) Fusion welding d) Spot welding

A hacksaw blade can be placed in a frame in A. One position B. Two positions C. Three positions D. Four positions

A hacksaw blade with 14 TPI is best suited for cutting A. Cold rolled steel B. Hot rolled steel C. Structural steel D. Any of these

A hacksaw blade with 32 TPI is best suited for cutting A. Small tubing B. Conduit C. Sheet metal under 18 gage D. Any of these

A hand tool used to measure engine crank web deflection. A. Feeler gage B. Compound gage C. Distortion gage D. Dial gage

A hand tool used to measure tension in bolts A. Tensile range B. Torque wrench C. Hooke's gauge D. Spring balance

A highly transparent and exceedingly hard crystalline stone of almost pure carbon is called A. Gold B. Diamond C. Bronze D. Crystalline

A hole, which is drilled for a particular size of a tap, is called A. Drilling hole B. Reaming hole C. Tapping hole D. Plugging hole

A job, which is fixed away from the table, can be machined by A. Running head B. Moving head C. Traveling head D. Static head

A joint between to overlapping members in whom the overlapped edge of one member is welded with a fillet weld is called a) A single welded lap joint b) Double welded lap joint c) A single welded lap joint with backing d) Track weld

A key may either straight or tapered. It is usually a drive fit. a) Pin key b) Saddle key c) Gib-head key d) None of these

A key that allows the hub to move along the shaft but prevents the rotation of the shaft. a) Woodruff key b) Feather key c) Gibbs key d) Square key

A kind of bolt, which has no head but instead has threads on bolts ends. a) Stud bolt b) Acme threaded bolt c) Square bolt d) Hex bolt

A knoop intender is a diamond ground to a __________. A. Cylindrical form B. Needle form C. Prismoidal form D. Pyramidal form

A lathe machine threading mechanism is called: A. Reverse Gear and lever B. Spindle Gear C. Changed Stud Gear D. All of these

A lathe with multiple cutting stations is called: A. Turret lathe B. Engine lathe C. Manual lathe D. None of these

A line drawn through all the points at which the teeth touch each other. a. Angle of contact b. Arc of contact c. Path of contact d. Arc of approach

A line shaft is also known as a) Counter shaft b) Jack shaft c) Main shaft d) Head shaft

A machine for bending a metal or wood part by pressure is known as A. Pressing machine B. Bending machine C. Forming machine D. Shaping machine

A machine for shaping a work piece by gripping it in a holding device and rotating it under power against a suitable tool for turning, boring facing or threading. A. Shaper B. Lathe C. Planer D. Engine Lathe

A machine for the removal of metal by feeding a work piece through the periphery of a rotating circular cutter. A. Milling Machine B. Milling Planer C. Milling Cutter D. Milling Shaper

A machine in which material are pulverized between two toothed metal disks rotating in opposite directions. A. Attrition mill B. Tumbling mill C. Ball mill D. Beater mill

A machine used in shaping metal by means of abrasive wheel of the removal of metals with an abrasive is called: A. Planer Machine B. Power Saw C. Shaper Machine D. Grinding Machine

A machinery operation whereby done with the work accurately fastened has a reciprocating motion and the tool head is stationary is called: A. Shaping B. Planning C. Turning D. Reaming

A manganese steel containing approximately 0.20% carbon A. SAE 1320 B. SAE 1230 C. SAE 2340 D. SAE 4230

A material that can wear away a substance softer than itself is called A. Abrasive B. Corrosive C. Tungsten D. Alloy

A material that should be avoided in constructing wood pattern is: A. Sap wood B. Kin dried wood C. Heart wood D. Core portion of wood

A material used in softening a piece of metal that is too hard to machine and is done by heating steel slowly above the usual hardening temperature keeping it at the heat for ½ to 2 hours then cooling slowly, preferably in a furnace A. Broaching B. Quenching C. Normalizing D. Annealing

A measure of the relative safety of a load-carrying component is termed as a) design factor b) load factor c) ratio factor d) demand factor

A new hacksaw blade should not be used to old cut because A. The blade is very costly B. The blade has very sharp teeth C. The space is not sufficient to play the new blade in the old cut D. None of these

A non-magnetic steel is: A. Nodular iron B. Manganese steel C. Tungsten-molydenum steel D. All of these

A notching/ holding device which is used to hold, or grip work place while filing, chipping or any other bench work or when machining or drilling them A. Vise B. Clamp C. Grip D. Pressed

A of welding whereby a wire or powder from the nozzle of a spray gun is fused by a gas flame, arc or plasma jet and then molten particles are projected in a form of a spray by means of compressed air or gas is known a a) Elector-slug building b) Electro-beam welding c) Plasma-arc welding d) Metal spray welding

A pair of forces equal in magnitude opposite in direction, and not in the same line is called a) couple b) momentum c) parallel forces d) torque

A piece of cast iron hold against an emery wheel will give of A. Bright shiny sparks B. Dull yellow sparks C. Red sparks D. No sparks

A piece of mild steel held against an emery wheel give off A. Bright shiny sparks B. Green sparks C. Light straw - colored sparks D. No sparks

A piece of tool steel held against an emery wheel will give off A. White sparks with stars on the end B. Yellow sparks C. No sparks D. Green sparks

A pillar file has A. One safe edge B. Three safe edges C. Two safe edges D. A and C

A pillar file is used for A. Filing against a shoulder B. Filing keyways C. Filing slots D. Any of these

A pin that is cylindrical in shape with a head on one end and a radial through hole in the other end. a) Clevis pins b) Taper pins c) Dower pins d) Taper pins

A planer which has a cutting action in both strokes in A. Open side planer B. Double housing planer C. Pit planer D. universal planer

A plate, cylinder or other solid with a surface of contact so designed as to caused or modify the motion of the piece. a) Cam b) Disc c) Gear d) Pulley

A plug gauge is used to measure A. Cylindrical bores B. Screw thread C. Spherical holes D. Taper bores

A preliminary evaluation of the elevated temperature properties of materials may be secured by means of a A. Stress rupture test B. Creep C. Impact test D. Modulus of rupture

A press in which mechanical feeding of the work is synchronized with the press action. A. Dial press B. Punch press C. Automatic press D. Manual press

A problem-by product used as an electrode in an electric arc furnace melting operations is called: A. Anthracite coke B. Foundry coke C. Graphite electrodes D. Bituminous coke

A process can be considered as a hot working process if the material is heated A. Below recrystallization temperature B. Above recrystallization temperature C. Below normal temperature D. Above normal temperature

A process of prestressing or over stressing a hollow cylindrical member beyond the elastic range by hydraulic pressure. a) Presstage b) Stress relieving c) Auto frettage d) Countersinking

A product of padding furnace, which contains less than 0.10% carbon, is called A. Wrought Iron B. Cast Iron C. Pig Iron D. Gray cast Iron

A puncher slotter is used for ______ stock removal. A. Light B. Heavy C. Small D. Large

A reamer is used to correct the A. Size and roundness of a drilled hole B. Size and position of a drilled hole C. Finish and position of a drilled hole D. Finish and depth of a drilled hole

A reinforced concrete beam is considered to be made up of: A. Clad material B. Composite material C. Homogenous material D. Heterogenous

A reinforced concrete beam is considered to be made up of a) clad material b) composite material c) homogeneous material d) heterogeneous material

A research agency handling assistance to all foundry, machine shop and metallurgical plant operation. A. MIRDCC B. NOI C. DOST D. All of these

A rope used for general-purpose. a) 6 x 15 IWRC b) 6 x 21 IWRC c) 6 x 19 IWRC d) 7 x 26 IWRC

A scott-Russell mechanism is made up of a) rotating pair only b) sliding and turning pairs c) turning and rotary pairs d) turning pair only

A scriber is made from A. Carbon steel B. Cold-rolled steel C. Hot-rolled steel D. Top steel

A sine bar cannot be used without a/an A. Angle gage B. Micrometer C. Slip gage D. Vernier Caliper

A slip joint ________ the length of propeller shaft. a) increases b) decreases c) keeps appropriate d) none of these

A solids grinder and the product is a fine powder A. Atomizer mill B. Autogenous mill C. Attrition mill D. Ball mill

A space lattice found in alpha-iron is called the A. Body centered cubic space lattice B. Close packed hexagonal space lattice C. Face centered cubic space lattice D. None of these

A special metal formed when two or more metals are melted together. A. Monel B. Alloy C. Solder D. Hastalloy

A specimen is subjected to a load. When the load is removed the strain disappears. From this information, which of the following can be deducted about this material? a) It is elastic. b) It has a modulus of elasticity. c) it is plastic d) it is ductile

A square taper key fitted into a keyway of square section and driven from opposite ends of the hub is known as a) Barth key b) Feather key c) Kennedy key d) Saddle key

A stationary member carrying pulleys, wheels and etc. that transmit power is called: a) Axle b) Propeller shaft c) Turbine shaft d) Machine shaft

A straight brace for bits whose shank comprises a coarse-pitch screws sliding in a threaded tube with a handle at the end of the device is operated by pushing the handle called A. Automatic capacity B. Automatic drill C. Automatic regulator D. Automatic stocker

A stud is one which: A. Has threads on one end B. Inserted in a plane hole C. Requires a nut D. None of these

A tap with a chamfer 1-1½ threads in length A. Center tap B. Bottom tap C. Taper tap D. Plug tap

A tolerance where the size of a part may be larger only or smaller only, than the given dimension A. Bilateral B. Unilateral C. Lateral D. None of these

A toll used for measuring diameters. A. Caliper B. Manometer C. Tachometer D. Pyrometer

A tool bit for cutting an American National Thread should be ground with a A. 30° angle B. 45° angle C. 60° angle D. 90° angle

A tool used for measuring diameters. A. Protractor B. Scriber C. Caliper D. Compass

A tool used for turning nuts or bolts. A. Plier B. Wrench C. Long nose D. C-Clamp

A tool which when pressed into a finished hole in a piece of work, provides centers on which the piece may be turned or otherwise machines called: A. Mash B. Butt C. Mandrel D. Wobble

A tool with hardened steel points used for scribing or laying of distances. A. Plain Scriber B. Divider C. Trammel D. Hermaphrodite

A type of bolt commonly used in the construction that is threaded in both ends. a) Stud bolt b) Acme threaded bolt c) Square threaded bolt d) Hex bolt

A type of bolt distinguished by a short portion of the shank underneath the head being square or finned or ribbed. a) Carriage bolt b) Coupling bolt c) Machine bolt d) Stud bolt

A type of coupling used to connect shafts that have lateral misalignment. a) Compression coupling b) Collar coupling c) Chain coupling d) Oldham coupling

A type of failure due to instability is known as a) Slenderness ratio b) Buckingham c) Buckling d) Stability

A type of gear wheels connecting non-parallel, non-intersecting shafts usually at right angles. a. Helical gear b. Herringbone gear c. Hypoid gear d. Bevel gear

A type of gear, which is used for heavy duty work where a large ratio of speed is required. a. Worm gear b. Bevel gear c. Spur gear d. Miter gear

A type of rope used for haulages, rigging, and guardrails. a) 6 x 35 IWRC b) 6 x 25 IWRC c) 7 x 7 IWRC d) 6 x 8 IWRC

A type of rope used for lines, hawsers, overheated cranes, hoists. a) 6 x 34 IWRC b) 6 x 35 IWRC c) 6 x 37 IWRC d) 6 x 45 IWRC

A type of square key with bottom two corners beveled is called a) Flat key b) Feather key c) Barth key d) Woodruff key

A unit cell contains nine atoms is known as the A. Body centered cubic space lattice B. Close packed hexagonal space lattice C. Face centered cubic space lattice D. None of these

A universal coupling is a) A rigid coupling b) A type of flange coupling c) Used for collinear coupling d) Used for non-collinear shafts

A usual ration of soluble oil and water used in coolant is A. 1:10 B. 1:20 C. 10:1 D. 20:1

A vent wire is used in A. Foundry B. Hot forging C. Cold forging D. Fitting

A weld of approximately triangular crosssection that join two surfaces at approximately right angles as in lap joint, tee joint, corner joint. a) Single welded lap joint b) Fillet weld c) Tack weld d) Butt weld

A weld place in groove between two butting members is called a) Full-fillet weld b) Tack weld c) Butt weld d) fillet weld

A welding operation in which a non-ferrous fillet metal at a temperature below that of the metal joined but is heated above 450C a) Spot welding b) Gas welding c) Brazing d) Arc welding

A welding operation that uses hot flame and metal rod is known as a) Gas welding b) Arc welding c) Resistance welding d) Automatic welding

AISI C1095 designates that it is a basic open hearth carbon steel having ________percent carbon A. 5% B. 9% C. 95% D. 0.95%

AISI means A. Association Iron and Steel Institute B. African Iron and Steel Institute C. Aluminum Iron and Steel Institute D. American Investment for Steel Industry

Ackerman steering gear is made up of a) rolling and sliding pairs b) rolling pairs c) sliding and rotary pairs d) turning pairs

All are associated with standard material specified except ________. A. American Iron and Steel Institute B. Society of Automotive Engineers C. Southeast Asia Iron and Steel Institute D. American Society for Testing Materials

All are associated with the grade of steel except: A. SAE 43xx B. SAE 13xx C. SAE 10xx D. SAE 74xx

All hard hacksaw blade is best suited for work on A. Brass B. Cast iron C. Tool steel D. Any of these

All hard hacksaw blade is one that A. Has a hard back and flexible teeth B. Has a flexible back and hard teeth C. Has the entire blade hardened D. Will only fit a solid frame hacksaw

All of the following statements about rusting of iron are correct, except: A. Contact with water and oxygen are necessary for rusting to occur B. Contact with a more electropositive metal reduces rusting C. Halides aggravate rusting process which involves electrochemical oxidation reduction reaction D. Pitting occurs in oxygen-rich anodic areas and the rust is deposited nearby

All terms and abbreviations deal with wire rope arrangement except this ________ which deals with rope materials strength . a) performed b) IWRC c) Mps d) Lang lay

Allowable stresses in shear equal to ________ are common in design of a shaft. a) 3000 to 5000 psi b) 4000 to 6000 psi c) 5000 to 8000 psi d) 6000 to 10000 psi

Alloy steel axle under repeated load / stress will eventually fail if the load / stress is above the endurance for the steel under consideration. The endurance limit of the steel is: A. Equal to the allowable stress of the module of elasticity B. Equal to half of the ultimate strength C. Equal to module of elasticity D. Equal to 80% of the elastic limit

Alloy steel known for its resistance to corrosion, abrasion and wear that is usually ideal for mill grinding of ore or cement and concentrator application. It is usually combined with molybdenum to increase the depth hardening. A. Manganese chromium steel B. Chromium-moly steel C. Chromium-nicke-moly steel D. Manganese-moly steel

Aluminum pistons are either cast or A. Ground B. Forged C. Pressed D. Welded

An advance motion along the longitudinal axis of a twist drill is called A. Speed B. Feed C. Cutting speed D. None of these

An alloy of copper, tin and antimony. A. Bearing B. Babbit C. Iconel D. Tantanium

An alloy of copper, tin and small amount of phosphorous A. Chromium B. Bronze C. Brass D. Aluminum

An alloy of iron and carbon in which the carbon content does not exceed 1.7%. A. Brass B. Steel C. Babbit D. Bronze

An alloy of nickel and copper A. Monel B. Iconel C. Titanium D. Vanadium

An alloy of tin, copper, antimony or sometimes lead A. Gold B. Babbit C. Aluminum D. Cast iron

An alloy that improves strength of steel at high temperature application. A. Tungsten B. Molybdenum C. Chromium D. All of these

An amorphous solid may be fusing silica with a basic oxide A. Pearlite B. Rock C. Silicon D. Glass

An extra flexible rope is a) 6 x 7 b) 6 x 19 c) 6 x 37 d) 7 x 7

An instrument used for measuring the degree of surface roughness in micro inches. A. Caliper B. Micrometer C. Profilometer D. Scleroscope

An intimate mechanical mixture of two or more phases having a define composition and a definite freezing melting point. A. Allotropy B. Pentectic C. Eutectic D. Protactic

An iron has physical properties closely resembling those of mild steel called A. Malleable cast iron B. Malleable iron C. White iron D. Gray iron

An old rule of thumb for transmission shafting is that the deflection should not exceed ____________ of length between supports. a) 0.01 in. per foot b) 0.02 in. per foot c) 0.03 in. per foot d) 0.04 in. per foot

An operation to make smaller hole in exact center for lathe center. A. Broaching B. Reaming C. Counter boring D. Center drilling

An oversize hole is produced by a drill if A. Lips of drill are of unequal length B. Feed is too high C. Insufficient coolant is used D. Cutting speed is too high

Anchor bolts should be embedded in concrete at least ___________ times the bolt diameter. a) 10 b) 20 c) 30 d) 40

Any device to connect or joint more components. a) Bolt b) Screw c) Fastener d) None of the above

Any heating and cooling of steel that produces a rounded or glocular form of carbide. A. Spheroidizing B. Malleability C. Graphizing D. Normalizing

Any material that retard the flow of electricity used to prevent or escape of electric current from conductors A. Bricks B. Insulators C. Refractories D. Composite

At a given section of an I beam the maximum bending stress occurs at the a) max. shear stress area b) neutral axis c) web joint near the flange d) outermost

At highest or lowest point on the moment diagram a) shear is half, the maximum moment b) shear is maximum c) shear is negative d) shear is zero

Before applying layout blue on a piece of metal, it must be A. Cleaned B. Cold C. Hot D. Roughened

Carbon steel drill should be operated at A. Speed greater than that when using a high speed drill B. Speeds less than that when using a high speed drill C. The same speed as that using a high speed drill D. None of the above

Cast alloy steel for very high temperature application A. Manganese-nickel steel casting B. High chrome steel casting C. Chrome-nickel steel casting D. High manganese casting

Cazand quotes values for steel showing Sn/Su ratios, often called endurance ratio, from a) 0.23 to 0.65 b) 0.34 to 0.45 c) 0.34 to 0.87 d) 0.63 to 0.93

Cemented carbide and ceramic cutting tools are usually provided with A. Positive rake angle B. Negative rake angle C. Positive cutting edge angle D. Negative cutting edge angle

Cemented carbide tipped tools can machine metal even when their cutting elements get healed up to the temperature of ___________. A. 1650 C B. 1400 C C. 1000 C D. 1800 C

Cemented carbide tools are usually provided with A. Positive back rake angle B. Neutral back rake angle C. Negative back rake angle D. Depth of cutter

Cemented carbide tools are usually provided with: A. Positive back rake angle B. Neutral back rake angle C. Negative back rake angle D. None of these

Chromium steel to include heat and corrosion resistant designation. A. SAE 56xx B. SAE 514xx C. SAE 61xx D. SAE 9xx

Cobalt is added to high speed steel to A. Increase ductility B. Increase fatigue strength C. Increase hot hardness D. Increase wear resistance

Coefficient of friction in anti-friction guide ways is: A. High B. Low C. Medium D. None of these

Cold working of steel plates make the metal A. Tougher B. More ductile C. Harder D. More malleable

Commutator segments are made of A. Zinc B. Brass C. Copper D. Nickel

Continuous chips are formed when cutting A. Brittle materials B. Ductile materials C. Amorphous plastic materials D. Free cutting non ferrous alloys only

Continuous stretching under load even if the stress is less than the yield point is called: a) Plasticity b) Elasticity c) Creep d) Ductility

Continuous stretching under load even if the stress is less than the yield point is known as: A. Plasticity B. Elasticity C. Creep D. Ductility

Cope foundry practice refers to A. Bottom half of molding box B. Coating on the mold face C. Middle portion of the molding box D. Top half of molding

Copper is annealed by heating to a cherry red color and A. Dousing in cold water B. Cooling slowly in water C. Dousing in oil D. Dousing hot water

Copper is annealed by hunting to a cherry red color and A. Cooling slowly in air B. Dousing in cold water C. Dousing in hot water D. Dousing in oil

Cores are used in mould to make it A. Hollow B. Smooth C. Strong D. Symmetrical

Coriolis component of acceleration is found in a) four bar mechanism b) mechanism of steam engine c) higher pair d) whitworth-quick-return mechanism

Defection of a beam is a) proportional to the modulus of elasticity and moment of inertia b) proportional to the load imposed and inversely to the length squared c) inversely proportional to the modulus of elasticity and moment of inertia d) inversely proportional to the weight imposed times the length

Delta iron occurs at: A. Temperature above melting point B. Temperature between 1400°C and 1539°C C. Temperature between 1000°C and 1400°C D. Room temperature

Device used to measure accurately speed called: A. Speedometer B. Dial Indicator C. Tachometer D. Dial gage

Device used to prevent leakage of media. A. Gasket B. Seal C. Shield D. Stopper

Dielectric strength of a material depends on the material's A. Moisture content B. Thickness C. Temperature D. All of these

Dilatometer is use to find out which property of molding sand? A. Fineness B. Hot Strength C. Moisture Content D. Permeability

Draft on a pattern is provided for. A. Facilitating pattern making B. Easy lifting of the casting C. Facilitating withdrawal of the pattern from the mould D. Providing for shrinkage of the coating

Dressing is A. An inspection method for castings B. A method of cleaning the castings C. A method of deoxidizing of molten metal D. The formation of oxides on them molten metal surface

During cold working metals are worked A. Below room temperature B. Below the melting point C. Below their recrystallization temperature D. Below 200 o

During tensile testing on a specimen cup and cone formation is observed with _______. A. Cast iron B. Cast steel C. Glass D. Mild steel

Elastic nut is a locking device that has a) one small nut is tightened over main nut and main nut tightened against smaller one loosening, creating friction jamming. b) a slot is cut partly in middle of nut partly in middle of tightening of screw c) hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip. d) Through slots are made at top and a cotter pin is passed through these and a hole in the bolt and cotter pin splitted and bent in reverse direction at other end

Electro-forming is especially valuable for A. Decorative items B. Good conductors of electricity C. Non-ferrous components D. Thin walled parts requiring a high order of accuracy and internal surface finish

Electron beam machining process is quite suitable for a material having A. High melting point and high thermal conductivity B. High melting point and low thermal conductivity C. Low melting point and low thermal conductivity D. Low melting point and high thermal conductivity

Energy is a/an A. Artificial abrasive B. Natural abrasive C. Type of cloth D. None of these

Engine valves get open by means of a) cam shaft b) rocker shaft c) crank shaft d) valve guard

Eutectoid steel the percentage of carbon is A. 0.02% B. 0.30% C. 0.63% D. 0.80%

External pressure tubes in boilers are designed with an apparent factor of safety of a) 1 to 3 b) 4 to 6 c) 5 to 7 d) 8 to 10

Extra flexible hoisting rope applications is a) 6 x 27 b) 6 x 37 c) 6 x 9 d) 6 x 21

Feeler gages are used for measuring the: A. Clearance between mating parts B. Pitch of screw threads C. Radius of curvature D. Thickness of plates

Ferromagnetic alpha iron exists in temperature range of: A. Below 723 oC B. 700 - 910 oC C. 1000-1440 oC D. 1400-1539 oC

Ferrous metals contain a relatively large amount of A. Manganese B. Carbon C. Sulfur D. Phosphorus

Files are classified according to A. Size or length B. Shape C. Grade and cut D. All of these

Files are divided into two general classes, namely A. Flat shapes and round shapes B. Large and small C. Rough and smooth D. Single - cut and double - cut

Finding the resultant of two or more forces is called: a) co-planar b) non-coplanar forces c) Acceleration d) composition of forces

Finishing off a piece of metal with a real smooth finish can be done by A. Draw - filing B. Fat - filing C. Milling - filing D. Side - filing

Fixture clamps are generally made of A. High carbon steel B. Case hardened mild steel C. High speed steel D. Alloy steel

Flash point is the __________ at which the sufficient vapor is given off from the oil without actual setting fire to the oil A. Gage temperature B. Lower temperature C. Higher temperature D. Absolute Temperature

Flexible material used to seal pressurized fluids normally under dynamic conditions. A. Packing B. Gasket C. Shield D. Seal

Flexible material used to seal pressurized fluids, normally under dynamic condition. A. Nylon B. Seal C. Teflon D. Packing

For a given rpm, if the diameter of a twist drill increases, then cutting speed will A. Decrease B. Increase C. Same D. None of these

For a high corrosion resistant stainless steel, what minimum chromium content is required? A. 8% B. 4.3% C. 1.1% D. 5.8%

For a universal joint shaft angle should be _________ degrees maximum and much less if in high rotational speed. a) 12 b) 16 c) 15 d) 14

For machining cast iron in shaper, the tool ground with ______ rake angle. A. Negative B. Positive C. 30° D. 45°

For machining the flange elbow on a lathe which of the following holding devices is used? A. Angle plate B. Catch plate C. Face plate D. lathe plate

For ordinary turning drilling and milling on low strength steel the cutting fluid applied have soluble oil with consistency of part oil to _______ parts water. A. 10 to 30 B. 10 C. 5 to 10 D. 10 to 20

For shaft, the minimum value of numerical combined shock and fatigue factor to be applied in every case to the computed bending moment is a) 1.0 b) 1.3 c) 1.5 d) 1.8

For shafts, the shear due to bending is a maximum at the neutral plane where the normal stress is a) constant b) maximum c) minimum d) zero

For the accurate measurement of bores , the best instrument is A. Vernier caliper B. Inside micrometer C. Plug gauge D. Dial test indicator

For three keys, a _________ percent overload often is used. a) 10 b) 15 c) 20 d) 25

For transmission shafts the allowable deflection is one degree in a length of _________ diameters. a) 10 b) 15 c) 20 d) 25

Front axle should be live and a) weak b) dead c) strong d) none of these

Fusion welding is the name frequently given to processes not requiring pressure. It is sometimes called a) Flash welding b) Seam welding c) Spot welding d) Thermit welding

Galvanized iron is a term referring to iron coated with: A. Aluminum B. Tin C. Zinc D. Manganese

Galvanized steel plate is: A. Aluminum B. Tin C. Zinc D. Manganese

Gamma iron exists at the temperature range A. Between 910°C and 1400°C B. Between 1400°C and 1539°C C. Near melting point D. Room temperatue

Gear pump used in hydraulic system are used for: a. Low and medium pressure b. Medium and high pressure c. Low and high pressure d. Medium and not high pressure

Gear pumps used in hydraulic system are used for _________. A. Low and medium pressure B. Medium and high pressure C. Low and high pressure D. None of the above

Generally spiral fluted reamer has spirals of A. Left hand B. Right hand C. Straight D. None of these

Generally, shaper is used for machining ________ surfaces. A. Curve B. Flat C. Rough D. Smooth

Generally, shaper tool cuts metal on the ______ stroke. A. Backward B. Cutting C. Forward D. Return

Generally, the material for thermocouple is A. Chrome copel B. Chrome alumei C. Platinum rhodum D. Any of these

Grinding fluids are used to A. Reduce the friction between the wheel face and the job B. Lubricate C. Prevent loading of wheel D. All of these

Grinding is A. Metal fusion operation B. Metal powdering operation C. Metal finishing operation D. None of these

Grinding is done wherever A. Other machining operation cannot be carried out B. A large amount of material is to be removed C. High accuracy is required D. None of these

Grinding is done wherever A. Other machining operations cannot be carried out B. A large amount of materials is to be removed C. High accuracy is required D. None of these

Grinding is what type of operation? A. Metal fusing operation B. Metal powdering operation C. None of these D. Metal finish operation

Grinding the gates, fins and sprues from casting is termed as A. Honing B. Tumbling C. Snagging D. Truing

Grinding the grooves of a twist drill or tap. A. Fluting B. Flaring C. Lapping D. Honing

Hard water is water, which contains soluble salts of which of the following elements? A. Sodium B. Sulfur C. Calcium D. Chlorine

Hardened steel parts have A. Coarse grain B. Fine grains C. Medium grains D. None of these

Hardening the surface of the iron-based alloys by heating them below the melting point in contact with a carbonaceous substance. A. Carburizing B. Normalizing C. Mar tempering D. Hardening

Hastalloy contains: A. Aluminum and nickel B. Copper and aluminum C. Nickel and copper D. Nickel and molybdenum

Heating to some 100F above the transformation range with subsequent cooling to below that range in still air at room temperature to produce uniform structure of metal is termed as A. Annealing B. Hardening C. Normalizing D. Tempering

Hoop stress refers to a) circumferential tensile stress b) compressive stress c) longitudinal stress d) radial stress

If "t" is the thickness of sheet to be spot welded then electrode tip diameter is equal to a) √ b) 1.5√ c) 2.5√ d) 2√

If 1080 steel is annealed by very slow cooling from 1000 C to ambient temperature, its microstructure will consist almost solely of: A. Austenite B. Bainite C. Cementite D. Pearlite

If a drill speed is too great, it will A. Cut faster B. Close its temper C. Out slower D. Not cut

If a particle of a link has a velocity that changes both in magnitude and direction at any instant, then a) it must have only unidirectional acceleration b) it must have two components of acceleration e.g., centripetal and tangential c) it must have three components of acceleration e.g., centripetal, centrifugal and tangential d) it must have three components of acceleration e.g., centripetal, centrifugal and gravitational

If a square key and shaft are to be of the same material and of equal strength the length of key would be equal to a) d b) 0.75 d c) 1.2 d d) 1.5 d

If all the principal stresses have finite values, the system is a) biaxial b) monoaxial c) triaxial d) uniaxial

If muriatic acid is used as a flux, the soldered area must be cleaned thoroughly afterwards to prevent a) Anyone touching it from getting burned b) Remaining acid form eating the metal c) The acid form evaporating and the solder disintegrating d) None of the above

If one principal stress is zero, the state stress is a) biaxial b) monoaxial c) triaxial d) uniaxial

If the angle on a drill is less than 59° A. The drill will make a larger hole B. The drill will make a smaller hole C. The hole will take longer to drill and more power is required to drive the drill D. The drill will not center properly

If the areas of cross-sections of square and circular beams are the same and both are put to equal bending moment then the correct statement is a) both the beams are equally economical b) both the beams are equally strong c) the circular beam is more economical d) the square beam is more economical

If the belt is loosely fitted on pulleys, _________ slips down. A. Creep B. Crowning C. Dressing D. Slip

If the clearance of a cutting edge is 5°, the lip (wedge) angle in 75°, the rake angle will be A. 10° B. 70° C. 80° D. None of these

If the cutting edges of a drill are cut at different angles A. The drill will not cut B. The hole will be larger than the drill C. The hole will be smaller than the drill D. None of these

Imperfections within metallic crystal structures may be all of the following. EXCEPT: A. Lattice vacancies or extra interstitial atom B. Ion pairs missing in ionic crystals C. Displacement of atoms of interstitial sites D. Linear defects or slippage dislocations caused by shear

In Carthias process A. Molten metal is fed into the cavity in metallic mould by gravity B. Metal is poured into die cavity and after a predetermined time the mould is inverted to permit a part of metal still in the molten state to flow out of cavity C. Cavity is filled with a pre- calculated quantity of metal and core or plunger inserted to force the metal into cavity D. Metal is forced into mould under high pressure

In _______ the tool is released in return stroke. A. Shaper B. Planer C. Slotter D. Reamer

In ________ jaw chuck each jaw can be adjusted independently. A. Five B. Two C. Three D. Four

In _________ type shaper, the reciprocating movement of the arm is affected by means of a rack and pinion. A. Gear B. Thread C. Screw D. Bolt

In a cantilever beam with a concentrated load at the free end, the moment is a) constant along the beam b) maximum at the wall c) ¼ maximum half way out on the beam d) maximum at the free end

In a column (slenderness ratio > 160), which of the following has the greatest influence on its tendency to buckle under a compressive load? a) the modulus of elasticity of the material b) the compressive strength of the material c) the radius of gyration of the column d) the length of the column

In a cutting tool, the cutting end can also be generally called: A. End cutting edge B. Nose C. Back rake D. Side rake

In a hydraulic driven shaper the metals is removed at A. Lower speed B. Higher speed C. Average speed D. None of these

In a planer the cutting speed depends upon A. Material of job, material of tool and feed rate B. RPM of ball gear C. Depth of cut D. None of these

In a pressure vessel, the ratio of minimum strength of joint to the strength of solid joint is known as a) Efficiency b) Joint efficiency c) Performance factor d) Relative strength

In a pressure vessel, the usual factor of safety may be taken as a) 2 b) 3 c) 5 d) 5

In a shaper the cutting speed (metric) is expressed in A. Meter per minute B. Meter per second C. Meter per hour D. None of these

In a shaper the feed (metric) is usually expressed in A. mm/ stroke B. mm/revolution C. meter/minute D. none of these

In a shaper, the _______ strokes takes place. A. Backward B. Forward C. Return D. Cutting

In a slotter the cutting speed depends upon A. Material to be cut B. Material of the slotter tool C. Finish required D. All of these

In a specification schedule is used when the pipe specified as "schedule 80", the pipe corresponds to the a) " extra standard " weight b) allowable stress c) internal pressure d) " old standard " weight

In a straddle milling operation how many cutters are used to mill the work A. One B. Two C. Three or more D. Any one of these

In a stress-strain diagram what is the correct term for the stress level at e = 0.20% offset? a) Elastic limit b) Plastic limit c) Offset rupture stress d) Offset yield stress

In a typical lathe machining, discontinuous chips of _____ are formed when machining A. Carbon steel B. Copper steel C. Copper D. Steel at high speeds

In a vertical milling machine the spindle is attached ________ to the work table A. Horizontal B. Angular C. Vertical D. None of the above

In carbon steel castings A. The percentage for alloying elements is controlled B. The percentage of carbon is between 1.7% to 2% C. The percentage of carbon is less than 1.7% D. None of the above

In case of a flat scraper, the depth of cut s verified A. Changing its inclination B. Changing the convexity of the cutting edge C. Changing its weight D. None of thesE

In case of a knuckle joint, the pin is most likely to fall in a) compression b) shear c) tension d) double shear

In case of an elliptical trammel, a) one pair turns and two pairs slide b) two pairs and two pairs slide c) three pairs turn and one pair slides d) all four pairs turn

In case of sunk key, a) the key is cut in both shaft and hub b) the key way is cut in hub only c) the key way is cut in shaft only d) the key way is helical along the shaft

In collet, the included angle of taper is usually A. 10° B. 20° C. 30° D. 40°

In compression, a prism of brittle material will break A. By forming a bulge B. By shearing along oblique plane C. In a direction along the direction of load D. Into large number of piece

In drilling soft materials use cutting angle as low as 40 degrees but for extremely hard material up to _____________ degree is recommended. A. 80 B. 65 C. 75 D. 70

In elliptical trammels, a) all four pairs are turning b) one pair turning and three pairs sliding c) three pairs turning and one pair sliding d) two pairs and two pairs sliding

In flange coupling the flange bolts are designed for a) fatigue b) shear forces c) compression d) tensile forces

In general, files are divided into two classes, namely: A. Fine and coarse B. Rough and smooth C. Single - cut and double - cut D. Shapes and sizes

In general, the design stress and factor of safety are related as follows a) design stress = ultimate stress times factor of safety b) design stress = ultimate stress divided by factor of safety c) factor of safety = design stress divided ultimate stress d) ultimate stress = factor of safety divided by design stress

In hydraulic shaper the reciprocating movement of the arm is obtained through ______ pressure. A. Mercury B. Oil C. Water D. Alcohol

In internal cylindrical grinding, the grinding wheel and the work rotate in A. Sam direction B. Opposite direction C. Neither A or B D. Both A and B

In quick return mechanism of shaping machine the ram stroke length is proportional to A. Slotter arm length B. Crank length C. Ram length D. None of these

In quick return mechanism of shaping machine, the ram stroke length is proportional to A. Slotter arm length B. Crank length C. Ram length D. None of these

In rack gear, circular pitch is called: a. Linear pitch b. Base pitch c. Diametral pitch d. Axial pitch

In resistance welding, the pressure is release a) Just at the time of passing the current b) After completion of currents c) After the weld cools d) During heating

In shaper, the tool is fed at the end of _______ stroke. A. Cutting B. Return C. Backward D. Forward

In such casting process: A. Molten metal is fed into the cavity in metallic mould by gravity B. Metal is poured into die cavity and after a predetermined time the mould is inverted to permit a part of metal still in the molten state to flow out of cavity C. Cavity is filled with a pre- calculated quantity of metal and core or plunger inserted to force the metal into cavity D. Metal is forced into mould under high pressure

In the SAE identification code of steel shafting, the 3rd and 4th digits represents the content of: A. % of manganese in the steel B. % of alloy C. % of carbon content D. % of chromium in the steel

In the list of process given below, the chip removal process is the A. Die casting B. Extruding C. Forging D. Broaching

In the list of process given below, the non-chip removal process is A. Grinding B. Spinning on lathe C. Thread cutting D. Milling

In the overdrive transmission system the rotation speed of ________ rest higher than that of engine's speed. a) main shaft b) crank shaft c) propeller shaft d) machine shaft

In the selection of wire rope, regular lay means wires and standards are arranged in the following manner _________ a) twisted in same direction b) twisted in any direction c) twisted in opposite direction d) twisted in along direction

In the stress-strain diagram where there is a large increase in strain with little or no increase in stress is called a) Endurance strength b) Ultimate strength c) Rapture strength d) Yield strength

In the top gear, the rotational speeds of _________ remain the same a) primary and lay shafts b) main and lay shafts c) primary and main shafts d) secondary and main shafts

In up cut milling the work piece is fed A. Against the rotating cutter B. At an angle 60° to the center C. At right angle to the cutter D. In the direction of the cutter

Intrinsic silicon becomes extrinsically conductive, with electrons as majority carriers when adopted with which of the following? A. Antimony B. Boron C. Germanium D. Aluminum

Involves the loss of ductility because of a physical or chemical change of the material is known as A. Embrittlement B. Pitting C. Cold shortness D. Decarburization

Is the relatively finely spaced irregularities on the surface A. Smoothness B. Lay C. Waviness D. Roughness

It acts the carriage or compound rest through the mechanism lifted inside the __________ A. Saddle B. Apron C. Compound D. Mandrel

It cannot be forged because it will break if heated and beaten by hammer A. High speed steel B. Tool steel C. Carbon steel D. Cast iron

It consists of surface irregularities, which result from the various manufacturing process. A. Lay B. Waiveness C. Flaws D. Roughness

It deals only with the motion of bodies without reference to the forces that cause them. a) Kinetics b) Motion c) Kinematics d) Acceleration

It has magnitude, direction and sense. a) scalar quantity b) absolute quantity c) vector quantity d) relative velocity

It improves red hardness of steel. A. Chromium B. Cobalt C. Boron D. Lead

It indicates how many times a volume of material is heavier than an equal volume of water. A. Specific gravity B. Specific volume C. Specific weight D. Specific density

It is a case hardening process in which work piece is heated in a stream of ammonia at 500 to 550°C A. Carburizing B. Nitriding C. Tempering D. Normalizing

It is a device that changes the magnitude, direction or mode of application of a torque or force while transmitting it for a particular purpose. a) Frame b) Machine c) Mechanism d) Structure

It is a device, usually motor-driven, fitted with an end cutting tool that is rotated with sufficient power either to create a hole to enlarge an existing hole in a solid material. A. Drill jigs B. Drill press C. Drill chuck D. Drilling machine

It is a device, which hold the job firmly A. Clamp B. Grip C. Fixture D. Jig

It is a device, which hold the job in position and guide the cutting tool. A. Clamp B. Jig C. Vise D. Grip

It is a good design practice for steel line shafting to consider a limit to the linear deflection of ________ inch/foot length maximum. a) 0.050 b) 0.010 c) 0.020 d) 0.060

It is a large casting located on the left end of the bed. A. Tailstock B. Headstock C. Carriage D. Chuck

It is a long, tapered punch used for loosening straight pins, rivets and other small parts being disassembled. A. Drive-pin punch B. Hand punch C. Drift punch D. Center punch

It is a machine tool used to machine plane curved surfaced, slots, grooves, teeth, with fast rotating multipoint cutter A. Milling B. Planer C. Shaper D. Grinder

It is a machine tool used to produce flat surfaces, which may be horizontal, vertical or inclined A. Planer B. Slotter C. Shaper D. Milling

It is a machine tool used to remove metal from a work piece to give it the required shape and size A. Drill press B. Lathe C. Shaper D. Planer

It is a milling method in which parts placed in a row parallel to the axis of the cutting tool end are milled simultaneously. A. Abreast milling B. Angular milling C. Helical milling D. None of these

It is a petroleum by-product used as electrodes in an electric arc furnace melting operation. A. Anthracite coke B. Foundry coke C. Graphite Electrode D. Bituminous coke

It is a process by which a hot plastic metal is made to flow into dies by the application of sudden blows to the material A. Drop forging B. Press forging C. Extrusion D. Machine forging

It is a process by which the length of a work place is increased by reducing its cross section area. A. Drawing out B. Drifting C. Jumping D. Upsetting

It is a process of enlarging and smoothening the punched hole by means of tapered drifts of various sizes and shapes A. Drifting B. Jumping C. Drawing out D. Upsetting

It is a process of hardening the outer portion of the metal by prolonged heating free from contact with air while the metal packed in carbon in the form of bone char, leather scraps, or charcoal. A. Carburizing B. Cyaniding C. Nitriding D. Aging

It is a process to impact maximum hardness to the steel part. A. Hardening B. Tempering C. Annealing D. Normalizing

It is a process to reduce some brittleness and to induce some toughness in the steel part A. Case Hardening B. Normalizing C. Annealing D. Tempering

It is a process to soft the steel part by removing the internal stress A. Normalizing B. Annealing C. Tempering D. Hardening

It is a property of matter, which causes it to resist any change in its motion or state of rest. a) Brake b) Friction c) Inertia d) Impulse

It is a set of gears fitted in different positions on a plate, which are controlled by a lever A. Gear train B. Stud Gear C. Tumbler Gear D. Differential Gear

It is a special case of drawing in which the work is rotated and formed by means of a tool A. Spinning B. Embossing C. Bulging D. Stretching forming

It is a squeezing operation used for flattening or surfacing various parts where small amount of flow of material is involved A. Hobbing B. Stamping C. Coining D. Sizing

It is a squeezing process used to finish sheet or bar stock for special purpose A. Cold forging B. Sizing C. Cold rolling D. Coining

It is a surface finishing process and is used to produce a lustrous surface of attractive appearance. A. Polishing B. Buffing C. Lapping D. Glazing

It is a symbol ___________ that the work surfaces should be machine-finished and placed on the line that represents the surface to be machined. A. f B. 5 C. 20 D. F.A.O

It is a type of bolt threaded on both ends that can be used where a through bolt is impossible. a) Carriage bolt b) Coupling bolt c) Machine bolt d) Stud bolt

It is a type of reciprocating type machine tool used for machining flat, cylindrical, and irregular surfaces. A. Planer B. Shaper C. Slotter D. Lathe

It is also known as climb milling in which the rotation of the cutter and the movement to the table is in the same direction A. Gang milling B. Down milling C. Up milling D. Straddle milling

It is an arbitrary modification by moving a small portion of a tooth material at the tip of the gear tooth. A. Tip removal B. Tip under cut C. Tip relief D. Pressure angle cut

It is an attachment to the milling machine, which helps to divide the job periphery into a number of equal divisions A. Index B. Dividing head C. Slotting D. Universal spiral

It is an operation of finishing the flat and cylindrical surfaces to a fine degree of accuracy by means of abrasive sticks A. Lapping B. Planing C. Shaping D. Honing

It is an operation of milling the complex surfaces with the help of a group of cutters mounted on the same arbor A. Gang milling B. Straddle milling C. Climb milling D. Down milling

It is an operation of milling two opposite sides of work piece at a time by using two side milling cutters on the same arbor A. Gang milling B. Straddle milling C. Side milling D. Face milling

It is an operation of sizing and finishing a hole by means of cutting tool having several cutting edges. A. Notching B. Piercing C. Turning D. Reaming

It is an operation of stretching or spreading over the metal by means of the plane of the hammer A. Peening B. Swaging C. Bending D. Upsetting

It is an operation to produce irregular contours using a form cutter A. Face milling B. Form milling C. Side milling D. End milling

It is an operation to produce narrow slots or grooves using a slitting saw milling cutter A. Saw milling B. Form milling C. End milling D. Side milling

It is done then and there by adjusting or repairing the faults come in notice during the work. A. Preventive maintenance B. Predictive maintenance C. Routine maintenance D. Corrective maintenance

It is done to decrease the brittleness and to increase the toughness A. Annealing B. Normalizing C. Tempering D. Nitriding

It is generally used on high speed with heavy load because it has line contact A. Plastic bearing B. Metal bearing C. Roller bearing D. Ball bearing

It is generally used on high speed with light load because it has point contact A. Ball bearing B. Roller bearing C. Metal bearing D. Wood bearing

It is hardening treatment whereby a cast metal is being heated to a very high temperature then suddenly subjected to rapid cooling to improve hardenability of wear resistance is called: A. Annealing B. Normalizing C. Tempering D. Quenching

It is hardening treatment whereby a cast metal is being heated to a very high temperature then suddenly subjected to rapid cooling to improve hardenability or wear resistance is called: A. Normalizing B. Tempering C. Annealing D. Quenching

It is mounted on the top of the column and is guided in perfect alignment by the machine dovetailed surfaces. A. Over arm B. Spindle C. Arbor D. Saddle

It is one in which some elements other than carbon has been added to improve change the physical properties. A. Low Carbon Steel B. Alloy Steel C. Medium Carbon Steel D. High Carbon Steel

It is one in which specimen, supported at both ends as a simple beam is broken by the impact strength of the metal A. Charpy test B. Izod test C. Rockwell test D. Universal test

It is opposite direction of parallel force. a) concurrent b) coplanar c) couple d) non coplanar

It is process to make the steel part to its normal range A. Annealing B. Normalizing C. Case Hardening D. Tempering

It is the best instrument for measuring a thousand of an inch. A. Micrometer B. Tachometer C. Caliper D. Pyrometer

It is the characteristic of exhibiting different properties when tested in different directions A. Allotropy B. Anisotropy C. Isentropic D. Isotropic

It is the outer surface of face or rim of the pulley and made in convex form to keep the belt in center when it is in motion A. Crowning B. Dressing C. Creep D. Slip

It is the process by which the length of a work piece is increased by reducing its cross-sectional area. A. Flattening B. Drawing out C. Swaging D. Jumping

It is the process for making the outer surface harder of the steel parT A. Flame Hardening B. Hardening C. Case Hardening D. Carburizing

It is the process of driving the periphery of the job in degrees. A. Direct indexing B. Plain indexing C. Differential indexing D. Angular indexing

It is the process of forging by which the metal in the plastic state is made to flow within a die by the application of plunger pressure A. Extrusion forging B. Smith forging C. Drop forging D. Press forging

It is the stretching or spreading of metal by hammering A. Peening B. Flaring C. Upsetting D. Bending

It is the tendency to fracture without appreciable deformation A. Ductility B. Brittleness C. Malleability D. Plasticity

It is the time lost due to break downs, waiting for tools, minor accident etc. A. Set up time B. Handling time C. Machining time D. Down time

It is used for cutting long pieces of metals. A. Planer B. Shaper C. Power saw D. Broaching machine

It is used for external, internal and relieving of mill cutters and taps A. Milling attachment B. Thread attachment C. Taper attachment D. Relieving attachment

It is used in conjunction with circular cross sectional members to retain oil and prevent dirt, foreign particles and moisture and to permit pressure differential between exterior and interior of the applied part. A. Seal B. Gasket C. Safety shield D. Packing

It is used in high-pressure cylinders. a) Thin-walled cylinders b) Thick-walled cylinders c) Solid-walled cylinders d) Hard-walled cylinders

It is used in steels as an alloying element to combing hardness obtained A. Vanadium B. Chromium C. Titanium D. Molybdenum

It is used on soft metals and non-metals for making holes A. Center punch B. Dot punch C. Hollow punch D. Prick punch

It is used to connect and disconnect the driving and driven units A. Brake B. Spring C. Clutch D. Coupling

It is used to measure gap between two mating parts to set the job and machine in alignment and to measure clearance of piston and cylinder in automobiles. A. Compound gauge B. Feeler gauge C. Inspection gauge D. Workshop gauge

It is used to toughen and strengthen the steel, to reduce the grain size and to act as a cleanser and degasifier. A. Nickel B. Boron C. Vanadium D. Molybdenum

It is used to transmit motion at high speed with heavy load without producing noise A. Worm gear B. Herring bone gear C. Bevel gear D. Spur gear

It is used to transmit motion at high speed without producing noise A. Bevel gears B. Hypoid Gears C. Helical Gears D. Worm Gears

It is used to true and align machine tools fixtures and works to test and inspect size trueness of finished work, and to compare measurements either heights or depths or many other measurements. A. Dial Gage B. Dial Indicator C. Tachometer D. Speedometer

It is used to true and align machine tools, fixtures and works. A. Dial indicator B. Radial indicator C. Dial gage D. Feeler gage

It measures the downward slope of the top surface of the tool from the nose to the rear along the longitudinal. A. Side cutting edge angle B. End relief angle C. Side rake angle D. Back rake angle

It measures the slope of top surface of the tool to the side in a direction perpendicular to the longitudinal axis. A. Side rake angle B. Side cutting edge angle C. Side relief edge angle D. End relief angle

It moves on the lathe bed with cutting tool according to the rotation of lead screw or by hand traversing wheel A. Apron B. Compound rest C. Saddle D. Mandrel

It refers to any layer or deposit of extraneous material on the heat-transfer surface A. Low line B. Pressure drop C. Fouling D. Scaling

It used for joining members of approximately equal in cross-section a) Mash welding b) Butt welding c) Upset welding d) Choices B and C

Kerosine is used as coolant, while machining which material? A. Aluminum B. Cast iron C. Mild steel D. Stainless

Killed steel is always associated with: A. Silicon B. Manganese C. Phosphorous D. Sulfur

Kinematics pairs are those pairs that have a) elements of pairs not held together mechanically b) point or line contact between the elements when in motion c) surface contact between the two elements when in motion d) two elements that allow relative motion

Klein's construction can be used when a) crank has a uniform angular acceleration b) crank has a uniform angular velocity c) crank has a non uniform angular velocity d) b and c above

Klein's construction is used to determine the a) acceleration of various parts b) angular acceleration of various parts c) displacement of various parts d) velocity of various parts

Knurling is done to A. Polish material B. Roughen material C. Sharpen the material D. Smoothen the material

Laser beam machining process is used to machine __________. A. Thicker materials B. Thinner materials C. Heavier materials D. None of these

Laser welding is widely used in a) electronic industry b) Heavy industry c) Process industry d) Structural work

Lateral deflection caused by bending should not exceed a) in. per foot of length b) 0.005 in. per foot of length c) in. per foot of length d) 0.05 in. per foot of length

Lathe operator to remove the taper shank from the taper hole uses drift. It is also called: A. Tong B. Morse Taper C. Chuck Taper D. Tapered Key

Length of contact between two mating parts in screw and nut threads measured axially is called a) Arc of contact b) Depth of engagement c) Length of engagement d) Axis of contact

Liners are normally made of: A. Cast iron B. Alloyed bronze C. Alloyed steel D. Alloyed aluminum

Lip clearance angle for drilling soft materials should be ________ that for drilling hard materials. A. Less than B. Equal to C. More than D. Zero

Machine tool used for laying straight lines on metal surfaces made of sharp tool steel is called: A. Plain Scriber B. A Trammel C. Hermaphrodite caliper D. Divider

Machining properties of steel can be improved by adding: A. Chromium, nickel B. Silicon, aluminum, titanium C. Sulfur, lead, phosphorus D. Vanadium,aluminum

Main alloying element to H.S.S is A. Chromium B. Tungsten C. Vanadium D. Nickel

Major and minor diameters are commonly used in a) screw thread b) bolt c) gear d) all of these

Major component of bronze casting is: A. Copper B. Manganese C. Zinc D. Lead

Mallets are made of ________. A. Hardwood B. Soft wood C. Steel D. Cast iron

Mandrel are used to hold A. Cutting tools B. Drill bits C. Face plate D. Hollow work pieces

Manganese is an alloy of A. Copper, manganese and nickel B. Copper, aluminum and chromium C. Copper, zinc and lead D. Copper, chromium and cadmium

Mark the cutter which works simultaneously with the up cut and down cut process A. Side milling cutter B. Shell and milling cutter C. Semi - circular milling cutter D. Plain milling cutter

Mark the milling method during which the formation of chatter marks is very likely: A. During down cut milling with a straight tooth cutter B. During face milling with a straight tooth cutter C. During up cut milling with a straight tooth cutter D. When using spiral tooth cutter

Material may be stretched and still returns to its former form / condition upon release of force is called: A. Plasticity B. Modulus of elasticity C. Ductility D. Elastic limit

Materials having a high percentage of alumina or steatite are known as A. Titanium B. Vanadium C. Refractories D. Ceramics

Measuring and other selling methods can be eliminated by using _________ and fixtures A. Guide B. Support C. Jigs D. Structure

Milling machine accessories are used to hold milling cutter in the milling machine called: a. Spindel - Nose Tooling b. Milling Machine Size c. Vertical Milling Attachment d. Milling Machine Arbors

Milling surfaces that are flat and at an angle to the axis of the spindle of the milling machine called A. Hammer milling B. Helical milling C. Angular milling D. Circular milling

Modulus of rigidity can be defined as the ratio of a) linear stress to longitudinal strain b) shear stress to shear strain c) shear to strain d) shear stress to volumetric strain

Mohr's circle can be used to determine _________ on inclined surface. a) principal stress b) normal stress c) tangential stress d) all of the above

Moment of inertia is also called _______ A. Modulus of elasticity B. Weep strength C. Radius of gyration D. None of these

Moment of inertia is also called: a) Modulus of elasticity b) Weep strength c) Radius of gyration d) None of these

Nitriding process of surface treatment for steel tools is used for taking A. Light cuts B. Heavy cuts C. Medium cuts D. None of these

No foundation bolts shall be less than _________ mm diameter. a) 10 b) 12 c) 14 d) 16

Nominal diameter of bolts is the a) major diameter b) minor diameter c) stress area d) mean diameter

Non-metallic material of high melting temperature being used as furnace lining. A. Quartz bricks B. Refractories C. Silica sand D. Dolomite clay bricks

Non-metallic materials of high melting temperature used in the construction of furnaces, crucible and so forth are called: A. Refractories B. Ceramics C. Insulators D. Grable

Obtained by dividing the differential load dF by the dA over which it acts. a) Elasticity b) Elongation c) Strain d) Stress

On a lathe, the dead center is used after A. Boring B. Center-drilling C. Drilling D. Reaming

One important skill that operates of machine tools must have an understanding of measurements, which demands: A. Speed B. Precision C. Sociability D. Neatness

One of the causes of grinding wheel glazing is A. Grain size is too fine B. Wheel is hard C. Wheel speed is too fast D. "A" and "B" both

One of the material used for making surface plate is: A. Brass B. Granite C. Stainless steel D. Wood

One of the materials used for making surface plate is A. Brass B. Granite C. Stainless steel D. Wood

One of the most important factors that is often overlooked when soldering is the fact that a) The surfaces to be soldered must be clean b) The two metals to be soldered must not be the same c) The two metals to be soldered must be the same d) All surfaces should be dipped in acid first

One of the most popular rope style is a) 6 x 7 b) 6 x 19 c) 6 x 37 d) 7 x 7

Ordinary steel begins to lose strength and elasticity significantly of about what temperature? A. 900-1000°F B. 800-900°F C. 700-850°F D. 600-700°F

Ornaments are cast by: A. Continuous Casting B. Die Casting C. Gravity Casting D. Presses Casting

Permeability, in relation to molding sands, is high for A. Coarse grains B. Fine grains C. Medium grains D. Round grains

Pipes subject to high pressure are generally made by a) slush casting b) pressure casting c) extrusion d) centrifugal casting

Pipes subjected to high pressures are generally made by A. Centrifugal casting B. Extrusion C. Pressure casting D. Slush casting

Piston compression rings are made of: A. Aluminum B. Bronze C. Cast iron D. White metal

Points of arrest of iron correspond to: A. Stages at which allotropic forms change B. Stages at which further heating does not increase temperature for sometime C. Stages at which properties do not change with increase in temperature D. There is nothing like points of arrest

Poisson's ratio is principally used in a) the determination of capability of material for being shaped b) the determination of capacity of a material for plastic deformation with fracture c) stress-strain relationships where stresses are applied in more than one direction d) the determination of the endurance limit

Poisson's ratio is the ratio of the a) unit lateral deformation to the unit longitudinal deformation b) unit stress to unit strain c) elastic limit to proportional limit d) shear strain to compressive strain

Polyesters belong to the group of: A. Phenolics B. Thermoplastic plastics C. Thermo setting plastics D. All of these

Practical considerations required that the hub length should be at least _________ to obtain a good grip. a) 1.2D b) 1.5D c) 1.7D d) 1.9D

Prepared soldered paste flux is most popular but if you did not have any, you could use _____ as substitute a) Hydrochloric acid b) Nitric acid c) Sulfuric acid d) Any of the above

Quick return mechanism is used in a A. Drilling machine B. Grinder C. Lathe D. Shaper

Raping allowance is provided on a pattern to take care of A. Shrinkage B. Machining C. Distortion D. Easy withdrawal

Ratchet stop is attached with micrometer to measure the accurate reading by applying _______ pressure irrespective of users skill and strength A. Atmospheric B. Gage C. Uniform D. Variable

Reamer should also be turned in _________ direction when taking it out A. Same direction B. Opposite direction C. Clockwise direction D. Counterclockwise

Reasons why cast iron is selected for the manufacture of surface plate A. It is easy for machinery B. It is cheaper C. It has less wear and tear D. All of these

Recommended best cutting angle of drill for work on steel or cast iron is ___________ degrees. A. 48 B. 63 C. 59 D. 50

Reducing flame is obtained in oxy- acetylene welding with a) Excess oxygen b) Excess of acetylene c) Equal parts of both gases d) Reduced acetylene

Refers to a hollow product of round or any other cross section having a continuous periphery. a) Gear b) Flywheel c) Sphere d) Tube

Refers to a screw fastening with a nut on it. a) Bolt b) Fastener c) Rivet d) None of these

Refers to an old name for an unfinished through bolt, comes with a square. a) Coupling bolt b) Machine bolt c) Stud bolt d) Automobile bolt

Refers to circular milling attachment that is bolted to the top of the table of a plain or universal milling machine. A. Slotting attachment B. Rotary attachment C. Milling attachment D. Spiral attachment

Refers to the actual stress the material has when under load. a) Allowable stress b) Factor of safety c) Ultimate strength d) Working stress

Refers to the capacity of a metal to be joined by welding in a satisfactory manner. a) Flame plating b) Metal spraying c) Metalizing d) Weldability

Refers to the unit that can be moved longitudinally along the swivel table and is clamped in position by two bolts one on either side of the base. A. Foot stock B. Head stock C. Tail stock D. Cross stock

Reheating to a temperature below the transformation range, followed by any desired rate of cooling to attain the desired properties of the metal A. Annealing B. Hardening C. Tempering D. Stress relieving

Relief angle of a single-point cutting mild steel cast iron and another average work as recommended should be in the range of _________ degrees for high speed tools. A. 8 to 12 B. 10 to 5 C. 5 to 7 D. 12 to 16

Removing the sharp edges from a piece of stock is referred to as A. Polish material B. Roughen Material C. Sharpen Material D. Smooth Material

Routing prescribes A. Inspection of final product B. Proper utilization of machine C. Proper utilization of man power D. The flow of materials in the joint

SAE 1020 steel is a carbon steel containing ____ percent carbon A. 20% B. 0.20% C. 10% D. 0.10%

SAE 2317 steel is a nickel steel alloy containing _____percent nickel A. 2% B. 3% C. 1% D. 7%

SAE means A. Society of American Engineers B. Society of Automotive Engineers C. Society of Australian Engineers D. Society of African Engineers

SAE steel that responds to heat treatment A. SAE 1060 B. SAE 1117 C. SAE 1030 D. SAE 1020

Screw thread projecting from a cylindrical surface is a a) thread series b) thread shear c) straight thread d) taper thread

Select from the conductors below that has the least electrical conductivity A. Lead B. Tin C. Zinc D. Aluminum

Select the best conductor of electricity A. Carbon B. Silver C. Copper D. Iron

Select the one that has the highest specific gravity A. Aluminum B. Brass C. High carbon steel D. Lead

Select the one that is gear finishing process. A. Gear Shaving B. Gear Shaping C. Gear Hobbing D. Gear Milling

Select the one that is not an angle measuring device A. Angle Iron B. Bevel protector C. Combination D. Sine bar

Select the one that is the highest pair. a) Crosby indicator mechanism b) Hart's straight line mechanism c) Thomson indicator mechanism d) Both gearing mechanism

Separate forces, which can be so combined are called: a) non-concurrent b) couple c) combined forces d) concurrent forces

Shaft couplings are used in machinery for several purposes. The most common purpose of shaft coupling is a) to provide for the connection of shafts of units that are manufactured separately b) to provide for misalignment of the shafts c) to reduce the transmission of shock loads from one shaft to another d) all of the above

Shaper tool bit should not exceed in tool holder beyond A. 5mm B. 15mm C. 25mm D. 50mm

Shaper tools are made of A. Mild steel B. Cast iron C. High speed steel D. Wrought iron

Shaper tools are made up of what type of material? A. Brass B. Bronze C. High speed steel D. Babbit

Shear modulus is also known as: a) Shear elasticity b) poisson's ratio c) modulus of elasticity d) modulus of rigidity

Short shafts on machines are called a) Core shafts b) Head shafts c) Medium shafts d) Spindles

Silicon - manganese steel designation, SAE ________. A. 72xx B. 40xx C. 92xx D. 9xx

Slightly rounding a cutting edge to reduce the probability of edge chipping is referred to as A. Broaching B. Butting C. Blunting D. Bleaching

Small pieces of metal clogged between the teeth on a file are called A. Bumps B. Clogs C. Flats D. Pins

Soda added to water is used for cooling instead of plain water because A. It reduces the amount of heat generated B. It improves the finish C. It overcomes rusting D. All of these

Soft solder is made of a) Copper and zinc b) Tin and copper c) Tin and lead d) Tin and zinc

Soft solder melts at approximately a) 250 °F b) 350 °F c) 450 °F d) 550 °F

Solder is an alloy of _________ A. Lead and zinc B. Lead and tin C. Lead and tungsten D. Lead and antimony

Soldered will not unite with a metal surface that has a) Dirt on it b) Grease on it c) Oxidation on it d) Any of the above

Soldering is the process of a) Holding two metals together by heating b) Joining two metals by a third soft metal that is applied in a molten state c) Holding two different kinds of metals together by heating d) All of the above

Some experiments made at Cornell University showed that experience mechanic could bread a ________ bolt due to nut tightening. a) 3/8 b) 5/8 inch c) ½ inch d) 7/16 inch

Sometimes used for soldering bright tin. A. Tallow B. Sal ammonia C. Tinning D. Rosin

Special solders used for aluminum usually require a) less heat b) More heat c) The same heat as copper wire d) The same heat as sheet metal

Splined shafts are generally for a) air craft b) automobiles c) bicycles d) machine tools

Staggering of hacksaw blade teeth on both sides alternatively is called A. Positioning to teeth B. Arrangement of teeth C. Setting of teeth D. None of these

Stainless steel is obtaining principally by the use of which of the alloying element? A. Chromium B. Nickel C. Carbon D. Tungsten

Statement that a given body is in static equilibrium means that the body cannot a) have any type of motion b) be acted upon by more than one force c) undergo any displacement d) have any type of acceleration

Steel can be strengthened by all of the following practices, EXCEPT: A. Annealing B. Quenching and tempering C. Work hardening D. Grain refinement

Steel containing large amounts of mild nickel and chromium A. Carbon steel B. Stainless steel C. Alloy steel D. Cast steel

Steel that has been deoxidized with strong deoxidizing agent such as silicon or aluminum, in order to eliminate the reaction between the carbon and oxygen during solidification A. Carbon steel B. Tool steel C. Killed steel D. Structural steel

Steel that has been hammered rolled or drawn in the process of electricity A. Wrought steel B. Rimmed Steel C. Killed steel D. Stainless steel

Steel with 0.80% carbon and 100% pearlite is known as: A. Austenite B. Eutectoid C. Hyper-eutectoid D. Solidous

Steels may be carburized and nitride simultaneously by the process known as A. Nitriding B. Carburizing C. Carbonitriding D. Cryaning

Straight fluted drill are used to drill _________ materials A. Soft B. Hard C. Thin D. Thick

Strength of a material is that of a stress intensity determined by considering the maximum test load to act over the original area of the test specimens called a) yield point b) ultimate strength c) break strength d) elastic limit

Stress relieving is also _________ for the purpose of reducing the internal stress of steel material / metal. A. Quenching B. Normalizing C. Tempering D. Drawing

Stresses in shafts are analyzed through a) torsional b) bending c) axial d) all of these

Stresses that are independent to loads are known as: a) Working stresses b) Operating stresses c) residual stresses d) shear stresses

Structural steel elements subjected to torsion develop what kind of stress? a) bending stress b) compressive stress c) shearing stress d) tensile stress

Subjecting a substance to a high temperature below the fusion point usually to make it friable. A. Calcinations B. Fusion C. Boiling D. Super heating

Substance that can increase the machinability of steel A. Phosphorous B. Phosphorous and aluminum C. Silicon and sulfur D. Sulfur graphite and aluminum

Substances having sufficient carbon and/or hydrogen for chemical oxidation to produce exothermally, worthwhile quantities of heat. A. Lubrication B. Graphite C. Grease D. Fuels

Successfully designing of jigs and fixtures depend upon A. Clamping arrangement B. Tool guiding elements C. Manufacturing conditions D. All of these

Super conductors A. Are non-crystalline B. Are the purest forms of metal C. Are the densest of materials is D. Exist at the temperature below 10K

Sweating is the process of a) Soldering two different kinds of metal b) Separating two pieces of metal that have been soldered together c) Tinning two surfaces, applying flux them, holding the two together and heating d) None of the above

Sweep pattern is used for molding parts having: A. Complicated shape having intricate details B. Rectangular shape C. Uniform symmetrical shape D. None of the above

Tap not used for cutting thread ___________. A. Tapping tap B. Bottoming tap C. Plugging tap D. Taper tap

Taps are re-sharpened by grinding A. Threads B. Flutes C. Diameter D. Relief

Test sometimes referred to as upsetting test called: A. Bend B. Flaring C. Flange D. Crush

Tests and theoretical investigations by J.F. Howe indicate that for steel ropes of the ordinary constructions the value of modulus of elasticity is a) 10,000,000 psi b) 10,500,000 psi c) 11,000,000 psi d) 12,000,000 psi

The ASME Boiler Code requires that the edge distance must be not less than a) 1.5d b) 2.0d c) 2.5d d) 3.0d

The Klein's method of construction for reciprocating engine mechanism a) enables determined of coriolis component b) is a simplified form of instantaneous center method c) is based on acceleration diagram d) utilizes a quadrilateral similar to the diagram of mechanism for reciprocating engine

The Roebling Handbook suggests minimum design factor of guy's is a) 3.0 b) 3.5 c) 4.0 d) 5.0

The Roebling Handbook suggests minimum design factor of miscellaneous hoisting equipment is a) 3.0 b) 5.0 c) 7.0 d) 9.0

The _______ is a machine tool used to remove metal from a work piece to give it the required shape and size. A. Shaper B. Planer C. Lathe D. Grinder

The _______ is the most common of the standard tapers. A. Brown B. Jarno C. Sharpe D. Morse

The _______ of a bevel gear is equal to the altitude of the pitch cone. a. Length of cone b. Vertex distance c. Length of hub d. Thickness

The _______ of a worm gear is the concave surface of the gear tooth. a. Radius b. Throat c. Pitch d. Addendum

The _________ traced by the outermost corner of one tooth on the plane of the other gear. a. Cycloid b. Hypocycloid c. Epitrochoid d. Trochoid

The __________ supports the table on the cross rail and moves across it from left to right. A. Apron B. Bearing C. Spindle D. Handle

The ability of a material to absorb energy when deformed elastically and to return to it when unloaded is known as A. Creep B. Fatigue strength C. Hardness D. Resilience

The ability of a metal to withstand forces that causes a member to twist. a) shear strength b) tensile strength c) bearing strength d) torsional strength

The ability of a substance to exist in more than one lattice form is known as A. Allotropy B. Grain C. Crystallization D. Diamagnetic

The ability of material or metal to resist being crushed is a) fatigue strength b) bending strength c) torsional strength d) compressive strength

The ability of material to return to its original shape after being elongated or distorted when the forces are released is called A. Elasticity B. Brittleness C. Plasticity D. Creep

The ability of metal to be deformed considerable without rupture is called: A. Malleability B. Elasticity C. Ductility D. Plasticity

The ability of metal to stretch bend or twist without breaking or cracking is called A. Elasticity B. Ductility C. Brittleness D. Plasticity

The ability of moving body to perform work is called: a) Internal energy b) potential energy c) kinetic energy d) flow work

The accuracy obtained by the grinding process can be of the order of A. 0.25 mm B. 0.025 mm C. 0.0025 mm D. 0.00025 mm

The action of a force is characterized by a) its magnitude b) direction of its action c) point of application d) all of the above

The alignment of coupling faces can be checked by A. Inserting a feeler gage between the coupling faces at various points around the circumference B. Inserting a thermometer C. Rotating and measuring to nearest permanent fitting D. Using an inside micrometer

The amount by which the dedendum in a given gear exceeds the addendum of its mating gear. a. Whole depth b. Clearance c. Backish d. Working depth

The amount of energy per unit volume which the material will possess when subjected to the elastic limit stress is called: A. Bulk modulus B. Modulus of Resilience C. Modulus of Elasticity D. Modulus of Rigidity

The angle between the plane of the pitch circle and a plane tangent to the end of the tooth. a. Foot angle b. Back angle c. Dedendum angle d. Face angle

The angle formed between the clearance surface and the work surface or the tangent to the work piece at the point of contact with the tool A. Clearance angle B. Wedge angle C. Rake angle D. Cutting angle

The angle formed between the face of a tool and the work surface or tangent to the work at a point of contact with the tool called A. Clearance angle B. Cutting angle C. Rake angle D. Wedge angle

The angle formed the face and the normal to the work piece at the point of contact with the tool A. Clearance angle B. Cutting angle C. Wedge angle D. Rake angle

The angle included between the sides of the thread measured in an axial plane in a screw thread. a) Angle of thread b) Angle between thread or 40 deg c) Helix angle thread d) Half angle thread

The angle of inclination of the planes on which the principal stresses act is called a) normal plane b) principal plane c) tangential plane d) traverse plane

The approximate hardness of HSS end mill cutter is: A. 45 HRC B. 52 HRC C. 62 HRC D. 72 HRC

The arc is covered with a welding composition and bare electrode wire is fed automatically a) Resistance welding b) Submerged arc welding c) Induction welding d) Spot welding

The area of the machine shop whose metal is being melted to form a new shape is the: A. Foundry Area B. Tool and Die Area C. Welding Area D. Mass Production Area

The area of the shear diagram of a beam between any two points on the beam is equal to the a) change in shear between the two points b) total shear beyond the two points c) average moment between the two points d) change in moment between the two points

The art of making definite impressions in sand by means of a pattern for a purpose of producing a casting A. Molding B. Pattern C. Extrusion D. Die casting

The bearing load on feather keys should not exceed a) 600 psi b) 800 psi c) 1000 psi d) 1200 psi

The best file to use when finishing sharp corners or slots and grooves is the A. Jeweler's file B. Knife file C. Mill file D. Square file

The best method of avoiding accident is by observing __________ related to job, machine and work piece. A. Emery B. Opponent C. Safety precautions D. Cleanliness

The blades for hacksaw have number of teeth range of: A. 15 - 38 teeth B. 14 - 32 teeth C. 12 -30 teeth D. 12 - 32 teeth

The cam angle is a) the angle subtended by live portion of cam at the cam's center b) the angle of rotation of the cam for a definite displacement of the follower c) the angle subtended at the cam's center by the portion of cam during which the follower moves d) the angle subtended by the cam at the cam center when the follower dwells

The characteristics of tool steel sustain shocks and major impacts is due to its: A. Toughness B. Stiffness C. Ductility D. Machinability

The cheapest and most abundant engineering material is ________ A. Aluminum B. Steel C. Cast iron D. Babbit

The chief usage of wire ropes at the present time is a) elevators b) cranes c) tramways d) all of the above

The circle containing the bottoms of the tooth spaces. a. Root circle b. Working depth circle c. Base circle d. Pitch circle

The circle from which the involute is generated. a. Base circle b. Pitch circle c. Working depth circle d. Addendum circle

The clamping block to be used in a slotter to support the end of the strap is made of A. H. S. S. B. High carbon steel C. Lead D. Wood

The coefficient of friction for dry surfaces a) depends on the materials and the finish condition of the surface b) depends only on the finish condition pf the surface c) does not depend on the materials d) depends on the composition of the materials only

The column splice is used for increasing a) strength of the column b) cross-sectional area of the column c) length of the column d) all of the above

The compression members tend to buckle in the direction of a) axis of load b) perpendicular to the axis of load c) minimum cross-section d) least radius of gyration

The cone, which represents in bevel gears the original friction surfaces are called a. Back cone b. Length of cone c. Pitch cones d. Cone distance

The conical surface at the starting end of the thread is called a) Pitch cone b) Chamfer c) Crest d) Flute

The correct cutting angle on a drill for ordinary work is A. 45° B. 50° C. 59° D. 65°

The corrosion of iron or iron-base alloy A. Rusting B. Crazing C. Chalking D. Fritting

The crest diameter of a screw thread is the same as a) major diameter b) pitch diameter c) minor diameter d) none of the above

The cutting angle on a drill for mild steel should be A. 39° B. 49° C. 59° D. 69°

The cutting of groove nest to a shoulder on a piece of work A. Undercutting B. Necking C. Grooving D. Any of these

The cutting speed of HSS twist drill to machine gray cast iron is A. 10-20 m/min B. 15-25 m/min C. 20-30 m/min D. 25-40 m/min

The darft allowance on metallic pattern as compared to wooden ones is: A. More B. Same C. less D. More/less depending on size

The deformation that results from a stress and is expressed in terms of the amount of deformation per inch. a) elongation b) strain c) poisson's ratio d) elasticity

The depth of the tooth inside of the pitch line is called: a. Working depth b. Dedendum c. Total depth d. Whole depth

The designation 6 by 7 indicates the rope is made of six strands each containing a) 7 pieces b) 7 diameters c) 7 wires d) 7 strands

The deterioration of organic coating characterized as completely _________ A. Chalking B. Rusting C. Checking D. Fritting

The diameter (D) of a plain milling cutter is approximately related to arbor diameter (d) as A. D=1.5d to 2d B. D=2.5d to 3d C. D=4.5d to 6d D. D=5.5d to 8d

The diameter of a circle coinciding with the top of the teeth of an internal gear. a. Dedendum diameter b. Pitch diameter c. Base diameter d. Internal diameter

The diameter of a washer is generally a) equal to the diameter of bolt b) slightly more than the diameter of the bolt c) slightly less than the diameter of the bolt d) of any size that suits the application

The diameter of the large end of the pin should be ________ the shaft diameter. a) ¼ b) 1/3 c) ½ d) 3/2

The difference between the high limit and the low limit of a size is called A. Allowance B. Clearance C. Boundary D. Tolerance

The differential of the shear equation is which of the following: a) bending moment of the beam b) tensile strength of the beam c) slope of the elastic curve d) load of the beam

The direction of the ________ is toward the center of the circle in which, the study moves. a) Centripetal acc. b) Centrifugal acc. c) Radial cam d) Tangential

The discontinuity or change of section, such as scratches, holes, bends, or grooves is a a) stress raiser b) stress functioning c) stress raiser d) stress relieving

The distance between similar sides of adjacent teeth measured on the pitch line is called: a. Diametral pitch b. Linear pitch c. Circular pitch d. Axial pitch

The distance between the crest and the brace of the thread, measured perpendicular to the axis. A. Depth of thread B. Length of engagement C. Depth of engagement D. Axis of thread

The distance in a straight line from one side of a tooth to the side at points where the pitch circle passes through the tooth. a. Circular pitch b. Pitch c. Chordal thickness d. Tooth length

The distance parallel to the axis from the pitch circle to the face of the shoulder or hub. a. Back one b. Backing c. Crown height d. Apex distance

The dulling of the cutting particles of a grinding wheel resulting in a decreased rate of cutting is called. A. Grinding B. Glazing C. Fluting D. Lapping

The effect of alloying zinc to copper is A. To increase hardness B. To increase strength and ductility if added up to 10-30 % C. To impact free machining properties D. To improve hardness and strength

The elongation of a conical bar under its own weight is equal to a) one fourth that of a prismatic bar of the same length b) one-sixth that of a prismatic bar of the same length c) one third that of a prismatic bar of the same length d) that of a prismatic bar of the same length

The eye hole of a hammer head is made in an oval shape and taper towards center because A. It is easy for production B. It is specifically design by experts C. It accommodates the handle and a wedge for preventing it D. None of the above

The factor of safety generally applied in wire rope design starts at 3-4 for standing rope application, 5-12 for operating rope and __________ for hazard to life and properly application like foundry operation. a) higher value b) 7 - 10 c) 8 - 10 d) 10 - 18

The five principal parts of the shaper are the table, tool slide, base, ram and _______. A. Column B. Vise C. Drive motor D. Apron

The flatness of surface can be checked A. By using a straight edge B. By using a surface plate C. By using a dial test indicator D. All of these

The flexible type hacksaw blade is best suited to work on A. Aluminum B. Channel C. Tubing D. Any of these

The flux and gauge when in proper proportions will have a melting temperatures considerably lower than that of ethane and the resulting combination is called: A. Lime B. Residue C. Stag D. Refractories

The flux that should be provided in soldering electrical connection or commutator wires as it tends to corrode the connections. A. Sal ammoniac B. Zinc chloride C. Stearing D. Acid fluxes

The flux that should be provided in soldering electrical connection or commutator wires as its tends to corrode the connectors called a) Sal ammoniac b) Zinc chloride c) Stearin d) Acid fluxes

The good deoxidizer in steel melting. A. Manganese B. Silicon C. Aluminum D. All of these

The greatest unit pressure the soil can continuously withstand. a) yield point b) bearing strength c) ultimate strength d) point of rupture

The groove providing for the cutting faces of the threads or teeth, chip passage and lubrication. A. Heel B. Land C. Flute D. Thread relief

The hacksaw blade should be placed in the frame with A. One end looser than the other end B. The teeth facing in any direction C. The teeth pointing backward D. The teeth pointing forward

The hardness of steel increase if it contains ___________ A. Austenite B. Pearlite C. Stalactite D. Martensite

The highest ordinate in the stress - strain diagram or curve is called a) elastic limit b) rapture strength c) ultimate strength d) yield point

The hop term used to include the marking of inscribing of center points circles area of straight lines upon metal surfaces, either curve or flat, for the guidance of the worker called: A. Shaping B. Hobbing C. Laying Out D. Shaping

The imperfection in the crystal structure is metal is known as: A. Dislocation B. Fracture C. Impurity D. Slip

The included angle of a dead center is A. 30° B. 45° C. 60° D. 90°

The internal resistance a material offers to being deformed and is measured in terms of applied load. a) strain b) elasticity c) stress d) resilience

The intersection between the axes of the line of centers and the common tangent to the base circles, a. Pitch line b. Pitch circle c. Pitch point d. Pitch surface

The jaw of a standard vise is A. Hard B. Semi - hard C. Semi-soft D. Soft

The key fits into mating grooves in the shaft and mating member is called a) Key way b) Key path c) Key hole d) None of these

The laminations are made from A. Low carbon steel B. Silicon sheet steel C. Nickel alloy steel stays D. Chrome steel sheets

The length of a file is measured from A. End to end B. Heel to end C. Point to end D. Point to heel

The length of contact in a tapped hole should be a minimum of about ___________ for cast iron. a) D b) 1.5D c) 1.2D d) 2D

The linear portion of the stress-strain diagram of steel is known as a) modulus of elongation b) plastic range c) irreversible range d) elastic range

The linear portion of the stress-strain diagram of steel is known as the : A. Modulus of elasticity B. Plasticity C. Irreversible range D. Elastic range

The machine foundation must have a factor of safety of a) 3 b) 4 c) 5 d) 6

The machine used for testing of very thin steel or surface layers A. Charpy Test B. Izod Test C. Description Test D. Rockwell Test

The main constituent molding sand is A. Carbon B. Clay C. Graphite D. Silicon

The main difference between a planer and a shaper A. The planer has offset table and the shaper has a horizontal table B. The shaper has a rotating table and the planer has a horizontal table C. The table of a planer has a reciprocating motion past the total head while the table of the shaper is stationary and the tool head has a reciprocating motion D. One is larger than the other

The main purpose of ________ is to resist wear and unable it to cut the other metal. A. Tempering B. Hardening C. Quenching D. Normalizing

The major factors, which determine the rpm of milling cutter, are the material being cut and the ________. A. Number of teeth in cutter B. Diameter of cutter C. Time allowed to complete the job D. Depth of cutter

The material for engine radiation is usually made of _________. A. Yellow brass B. Silicon brass C. Admirally brass D. Navy brass

The maximum hardenability of any steel depends on __________ A. The alloying elements present B. The carbon content C. The chemical composition D. The grain size

The maximum size of the fillet weld that can be made in single pass is a) 3 mm b) 6 mm c) 8 mm d) 12 mm

The maximum stress induced in a material when subjected to alternating or repeated loading without causing failure. a) Ultimate strength b) yield strength c) endurance strength d) rupture strength

The maximum stress induced in a material when subjected to intermittent or repeated load without causing failure is called: a) Ultimate stress b) Endurance limit c) Ultimate strength d) Elastic limit

The maximum stress to which a material may be subjected before failure occurs is called: a) Rupture strength b) ultimate strength c) Yield strength d) proportional limit

The maximum stress to which a material may be subjected before failure occurs. a) rupture stress b) yield stress c) ultimate stress d) allowable stress

The maximum stress to which a standardized test specimen may be subjected without permanent deformation. A. Endurance limit B. Proportional limit C. Elastic limit D. Plastic limit

The maximum stress, which is reached during a tension test is called a) stress b) elasticity c) strain d) tensile strength

The maximum temperature developed for oxy-acetylene welding is a) 1965 C b) 2565 C c) 3440 C d) 4565 C

The maximum temperature developed for oxy-hydrogen welding is a) 1755 C b) 1965 C c) 2565 C d) 3440 C

The mechanical fastening that connects shafts together for power transmission. a) Coupling b) Key c) Splines d) None of the above

The mechanical treatment by which the concentration of ores is increased are called: A. Gravity Separation B. One dressing C. Distillation D. Sintering

The metal cutting wedge is fundamental to the geometry of A. Head of tools only B. Power driven tools only C. Sheet metal cutting tools only D. All cutting tools

The method of cold working by compression. A. Broaching B. Lapping C. Piercing D. Reaming

The minimum factor of safety of small hoist is a) 3 b) 5 c) 7 d) 9

The modulus of elasticity for ordinary steel usually falls between ________ million pounds per square inch. a) 26 to 28 b) 28 to 31 c) 20 to 45 d) 50 to 30

The modulus of elasticity in shear is commonly called a) Bulk modulus b) deformation c) Modulus of rigidity d) Young modulus

The modulus of elasticity is a measure of a) accuracy b) quality c) stiffness d) rigidity

The modulus of plasticity is a measure of A. Stiffness B. Toughness C. Resilience D. Hardness

The modulus of rigidity of a steel member is a) a function of the length and depth b) defined as the unit shear stress divided by the unit shear deformation c) equal to the modulus of elasticity divided by one plus Poisson's ratio d) defined as the length divided by the moment of inertia

The most common type of sliding action fastener and is widely used on doors is the a) Pawl fastener b) Magnetic fastener c) Sliding fastener d) Screw fastener

The most important element that controls the physical properties of steel is: A. Carbon B. Chromium C. Silicon D. Tungsten

The mould for casting ferrous materials A. Copper B. High carbon steel C. Low carbon steel D. Medium carbon steel

The mould for casting ferrous materials in continuous melting process is made of: A. Low carbon steel B. Medium carbon steel C. High carbon steel D. Copper

The movement of belt upon the face of rim or outer of the driver and driven pulleys within the area of arc of contact is called A. Slip B. Creep C. Crowning D. Dressing

The movement of belt upon the face of rim or outer surface of the driver and driven pulleys within the area of arc of contact. A. Slip B. Creep C. Interference D. Crowning

The name of a taper shank used to drill is A. Miller B. Morse C. Starrett D. Stanley

The non chip removal process is called A. Grinding B. Spinning on lathe C. Thread cutting D. Drilling

The non ferrous alloy corrodes in ammonia is A. Copper B. Bronze C. Brass D. All of these

The number of links in a pantograph is equal to a) 3 b) 4 c) 5 d) 6

The one that is an acceptor impurity element A. Antimony B. Gallium C. Arsenic D. Phosphorus

The operation of finishing a drilled hole to the correct size is known as A. Counter boring B. Counter sinking C. Reaming D. Spot facing

The operation of machining the end of a work piece to make the end square with the axis. A. Squaring B. Buffing C. Lapping D. Honing

The operation of producing a beveled edge at a specified angle of the end of a turned diameter. A. Chamfering B. Knurling C. Honing D. Undercutting

The operation of producing a circular hole by removing solid metal. A. Knurling B. Reaming C. Boring D. Drilling

The operation of truing a grinding wheel is known as A. Centering B. Dressing C. Rounding D. Sizing

The outside diameter of the worm measured on the central plane. a. Dedendum diameter b. Addendum diameter c. Throat diameter d. Pitch diameter

The over arm of a milling machine is used to support A. Arbor B. Spindle C. Column

The part of a machine for wood planning that carries the cutters. A. Adz stock B. Adz block C. Head stock D. Heel block

The parts are brought together lightly with current flowing and then separated slightly a) Mash weld b) Steam welding c) Flush welding d) Percussion welding

The parts are lapped and held in place under pressure a) Butt welding b) Spot welding c) Steam welding d) Projection welding

The permissible crushing stress is about _________ times the permissible shear stress. a) 1.5 b) 1.7 c) 1.9 d) 1.10

The phenomenon of weld decay takes place in a) Brass b) Bronze c) Cast iron d) Stainless steel

The pitch point on a cam refers to a) any point on pitch curve b) a point at a distance equal to pitch circle radius from the center c) the point of cam pitch circle that has the maximum pressure angle d) none of the above

The planer tool differs from lathe tool because it has A. Less front and side clearance B. More front and side clearance C. Less rake angle D. More rake angle

The plastic deformation at temperatures above the recrystallization temperature. A. Hot Working B. Cold Working C. Normalizing D. Annealing

The plastic deformation at temperatures below the recrystallization temperature. A. Hot Working B. Normalizing C. Annealing D. Cold Working

The portion of the common tangent to the base circles along which contact between mating involutes occurs. a. Line of action b. Pitch line c. Arc of action d. Angle of action

The power obtained by piston reaches flywheel through the a. countershaft b. crank shaft c. transmission shaft d. line shaft

The pressure of inoculation is used: A. To clean the casting B. To decrease the melting temperature of a cast metal C. To change the chemical composition of a cast metal D. To modify the structure and properties of a cast metal

The primary and lay shafts rotate in _________ direction. a) in the same b) different c) reverse d) none of the above

The principal materials used in high production metal working tools A. Hyper-eutectoid B. High speed steel C. Lead D. High speed carbon

The process commonly used over thermoplastic materials is: A. Cold forming B. Die casting C. Injection molding D. Shell molding

The process of bonding two or more pieces of metal together by means of another metal whose melting point is below 800⁰F a) Brazing b) Seaming c) Soldering d) Welding

The process of checking or producing checkers on the surface of a piece by rolling checkered depression into the surface called A. Knurling B. Hemming C. Breading D. Embossing

The process of checking the surface of a piece by rolling depressions into the surface. A. Honing B. Knurling C. Snagging D. Reaming

The process of cutting internal threads by means of a cutting tool. A. Tapping B. Reaming C. Chamfering D. Honing

The process of forming metals by the use of dies after the metal is heated to its plastic range. A. Rolling B. Forging C. Turning D. Casting

The process of heating a piece of steel to a temperature within or above critical range and cooling rapidly. A. Normalizing B. Hardening C. Annealing D. Tempering

The process of increasing the carbon content to surface of steel by exposing it to hot carbonaceous material above the transformation of 1650 to 1750 F A. Carbonitriding B. Case hardening C. Carburizing D. Induction hardening

The process of increasing the cross-sectional area of a given portion or possibly of the whole piece. A. Forging B. Upsetting C. Spreading D. Drawing

The process of joining metal parts by means of a non ferrous fitter or alloy that melts at a temperature above 800⁰F. a) Brazing b) Seaming c) Soldering d) Welding

The process of joining metals by means by heating to a temperature above the recrystallization temperature or to fusion with or without the application or pressure a) Brazing b) Soldering c) Welding d) Seaming

The process of joining metals in which the two parts are joined by heating them electrically to a temperature above the recrystallization temperature. a) Flash welding b) Projection welding c) Thermit welding d) Resistance welding

The process of removing burrs and the gates and risers left on casting after the molding process. A. Reaming B. Snagging C. Honing D. Knurling

The process producing a hard surface in a steel having a sufficiently high carbon content to respond in hardening by cooling of the surface. A. Flame Hardening B. Induction Hardening C. Cyaniding D. Carburizing

The product of circular pitch and diametral pitch is: a. 2π b. π c. 3 π d. 4 π

The product of the resultant of all forces acting on a body and the time that the resultant acts. a) angular impulse b) angular momentum c) Linear impulse d) linear momentum

The property of a material that indicates its ability to transfer heat A. Thermal conductivity B. Electrical resistivity C. Thermal expansion D. Electrical conductivity

The property of a material that relates the lateral strain to longitudinal strain is called: a) stress b) strain c) poisson's ratio d) endurance limit

The property of steel which resist indention of penetration is called A. Hardness B. Elasticity C. Ductility D. None of these

The purpose of chaplets is to: A. Ensure directional solidification B. Function a lower and upper parts of the molding box C. Provide efficient venting D. Support the cores

The purpose of using flux in soldering is to a) Increase fluidity of solder material b) Full up gaps in bad joint c) Prevent oxide formation d) Lower the melting temperature of the solder

The radial pressure and hoop tension for a thick cylinder is a) maximum at inner surface and decreases toward outer surface b) minimum at inner surface and increases towards outer surface c) minimum at inner and outer surfaces and maximum in middle d) maximum at inner and outer surfaces and minimum in middle

The radial pressure between the cylinders at the surface of contact depends on the ___________ of the materials. a) strength b) hardness c) modulus of elasticity d) modulus of rigidity

The rake angle of a cutting tool. A. Controls the chip formation B. Prevents rubbing C. Determine the profile of load D. Determine the whether the cutting action is oblique or orthogonal

The ratio of bulk modulus for Poisson's ratio of 0.25 will be equal to a) 3/2 b) 5/16 c) 1 d) 2

The ratio of moment and stress is called: a) Contraction b) Proportional constant c) Section modulus d) Strain

The ratio of stress to strain within the elastic limit is called a) creep b) modulus of rigidity c) modulus of elasticity d) poisson's ratio

The ratio of the length of the column and the radius of gyration of the cross-sectional area about a centroidal axis is called a) contact ratio b) constant ratio c) power factor d) slenderness ratio

The ratio of the load that will produce the allowable stress in any part of the joint to the load that will produce the allowable tension stress in the unpunched plate. a) Efficiency of the welded b) Efficiency of the jont c) Performance factor d) Load factor

The ratio of the moment of inertia of the cross - section of the beam to the section modulus is a) equal to the radius of gyration b) equal to the area of the cross-section c) measure of a distance d) dependent on modulus of elasticity of beam measure

The ratio of the moment of inertia of the cross-section of a beam to the section modulus is a) equal to the radius of gyration b) equal to the area of the cross section c) a measure of distance d) multiplied by the bending moment to determine the stress

The ratio of the strength of all the inside wires to the strength of all the wires in the rope a) excess strength b) reserve strength c) factor of safety d) ratio of factor

The ratio of the tensile stress to the tensile strain is called a) Bulk modulus b) Hooke's law c) Shear modulus d) Young modulus

The ratio of the ultimate stress to the allowable stress. a) proportionality constant b) strain c) Modulus d) Factor of safety

The ratio of the volume stress to the volume strain is called the coefficient of volume elasticity or a) bulk modulus b) Hooke's law c) shear modulus d) Young modulus

The ratio of unit lateral deformation to unit longitudinal deformation is called: a) poisson's ratio b) willan's line c) modulus of elasticity d) deformation

The recommended value of rake angle for machine aluminum with cutting tools made up of high speed steel tool. A. 5° B. 10° C. 15° D. 35°

The recommended value of the rake angle for machining aluminum with cutting tools made up of cemented carbide tool A. 5° B. 10° C. 15° D. 25°

The relative motion of work piece in planning is A. Rotary B. Translator C. Rotary and translator D. None of these

The relative motion of work piece in planning is A. Rotary B. Translatory C. Rotary and translator D. None of these

The resultant of two or more forces is a a) couple of forces b) concurrent of forces c) momentum d) resolution of forces

The safe edge of a file is A. The end opposite the handle B. The one with a handle C. The edge with the handle D. None of these

The safe soil bearing pressure of diesel engine is about a) 2000 kg per sq. cm b) 4600 kg per sq. cm c) 4890 kg per sq. cm d) 5633 kg per sq. cm

The science which deals with the preparation and application of metals and alloys. A. Manufacturing B. Metalloids C. Metallurgy D. Refractories

The screw thread commonly used for transmission of motion is one of the following types of ___________ threads. a) acme b) vee c) knuckle d) British Association

The shape of the curve on the side of gear is termed as: a. Stub b. Involute c. Trochoid d. Cycloid

The single force which produces the same effect upon a body as two or more forces acting together is called: a) Resultant force b) co-planar force c) couple d) non-coplanar force

The size by which it is referred to as a matter of convenience called A. Basic size B. Actual size C. Nominal size D. Effective size

The size in relation to which all limits of variation is made. A. Actual size B. Basic size C. Effective size D. Nominal size

The size of a drill is stamped on the A. Flute B. Margin C. Point D. Shank

The size of abrasive grains in an abrasive jet machining varies from A. 60 to 100 microns B. 10 to 50 microns C. 1 to 5 microns D. 110 to 150 microns

The size of abrasive grains produced by crushing process is called A. Grade B. Grit C. Peebles D. None of these

The soldering material commonly applied for automobile radiator cores and roofing seams. a) 15/85 % tin and lead b) 50/50% tin and lead c) 45/55% tin and lead d) 20/80% tin and lead

The speed at which the center of mass will equal the deflecting forces on the shaft with its attached bodies will then vibrate violently, since the centrifugal force changes its direction as the shaft turns. a) Critical speed b) Geometrical speed c) Mean speed d) Unit speed

The spindle of the grinding machine on which the wheel is mounted A. Bushing B. Arbor C. Bearing D. Fluting

The square head of a combination set is used for marking or checking the engine. A. 90° only B. 90° and 45° C. 45° only D. Any angle between 0-180°

The steering is coupled to the two front wheels by means of a a) connecting rod b) tie rod c) push rod d) spindle

The strength of iron rivets in single shear a) 262 N/mm2 b) 303 N/mm2 c) 524 N/mm2 d) 607 N/mm2

The strength of steel rivets in single shear a) 262 N/mm2 b) 303 N/mm2 c) 524 N/mm2 d) 607 N/mm2

The strength of the rope is always ____________ the sum of the strength of wires a) less than b) more than c) equal d) the same

The stress beyond which the material will not return to its original shape when unloaded, but will retain a permanent deformation is termed as a) elastic limit b) proportional limit c) yield point d) yield strength

The stress concentration factor a) is a ratio of the average stress on a section to the allowable stress b) can not be evaluated for brittle materials c) is the ratio of areas involved in a sudden change of cross-section d) is the ratio of the maximum stress produced in a cross section to the average stress over the section

The stress concentration is maximum at _________ in a standard coarse thread. a) all over the surface b) flank c) root d) top surface

The stress in an elastic material is a) inversely proportional to the material's yield strength b) inversely proportional to the force acting c) proportional to the displacement of the material acted upon by the force d) inversely proportional to the strain

The stress or load induced by the tightening operation. a) Initial stress b) Initial tension c) Residual stress d) None of these

The stress value, which is used, in the mathematical determination of the required size of the machine member. a) Endurance stress b) Design stress c) Maximum stress d) Normal stress

The stress-strain curve for a glass rod during tensile test is a) an irregular b) a parabola c) a sudden break d) a straight line

The studs used as a coolant in general machine stop consist of A. A solution of detergent and water B. A straight mineral oil C. An emulsion of oil and water D. A chemical solution

The studs used as a coolant machine shop consists of A. Solution of detergent and water B. A straight mineral oil C. An emulsion of oil and water D. A chemical solution

The surface below over which the chip flows. A. Face B. Flank C. Nose D. None of these

The surface below the cutting edge A. Face B. Flank C. Nose D. Side relief

The surface between the flanks of adjacent teeth. a. Top land b. Tooth flank c. Tooth face d. Bottom land

The surface connecting the cast and roots of the screw thread. a) Lead angle b) Length of engagement c) Top land d) Flank

The surface finish of heavy cuts and coarse feed A. 80 rms B. 200 rms C. 400 rms D. 500 or greater rms

The system of forces and opposite collinear forces are added, which of the following if any is true? a) equilibrium is destroyed b) equilibrium is maintained c) none of these is true d) an unbalance of moment exist

The table of the slotter has feeding movements A. Longitudinal B. Cross C. Rotary D. All of thesE

The tang of a file is the part that A. Does the cutting B. Fits into the handle C. Has no teeth D. Is opposite the handle

The temperature above which the alloy is liquid and will run is known as ______ A. Melting point B. Flow point C. Pour point D. Dew point

The temperature at which an oil gives off sufficient vapor without actually setting fire to the oil. A. Flash point B. Fire point C. Pour point D. Cloud point

The tensile stress of a material is given by a) average load during the test / average at the time of fracture b) average load during the test / original crosssectional area c) maximum load during test / area at the time of fracture d) maximum load during test / original crosssectional area

The term ________ means that particle of metal are adhering to the cutting faces of the grinding wheel. A. Loading B. Feeding C. Rating D. Grinding

The term used for most press operations A. Glazing B. Stamping C. Coning D. Swaging

The tool bit made of tool blank consists of face, nose, shank, and ________. A. Cutting edge B. None of these C. Round nose D. Nose

The tool used to check internal pipe threads is called A. Pitch gage B. Plug gage C. Ring gage D. Thread gage

The tool used to cut threads on pipe is called a A. Pipe tool B. Pipe stock C. Pipe vise D. Pipe cutter

The tooth life is affected to the maximum extent by A. Gear grinding B. Gear Shaping C. Gear shaving D. Milling

The top and bottom-land for gears is similar formed as to crest and ________ for screw thread. a) flank b) root c) flank tooth d) top land

The total amount of permanent extension of the gage length measured after specimen has fractured and is expressed as percentage increase of the original length. a) elongation b) strain c) stress d) elastic limit

The total deformation measured in the direction of the line of stress. a) strain b) elasticity c) elongation d) contraction

The total permissible variation in the size of a dimension the difference between the limits of the size. A. Tolerance B. Fits C. Allowance D. Clearance

The total resistance that a material offers to an applied load is called a) friction torque b) stress c) rigidity d) compressive force

The total resistance that a material offers to an applied load. a) flexure b) stress c) elasticity d) rigidity

The transmission system incorporates clutch, gear box, and propeller shaft and a) brake b) differential c) steering d) main shafting

The two keys are angularly spaced a) 45 b) 60 c) 75 d) 90

The type and number of bearing to be used for spindles of machine tool depend on A. Type of spindle B. Type of machine tool C. Load on the bearing D. None of these

The value of allowable stresses which are generally used in practice for line shafts carrying pulleys is a) 150 kg/cm2 b) 282 kg/cm2 c) 423 kg/cm2 d) 550 kg/cm2

The value of one micron is A. 1.00 mm B. 0.10 mm C. 0.001 mm D. 0.001 mm

The yield strength of the rectangular yellow brass 65 tp 70% Cu, 30 to 35% Zn can be increased / improved by _____. A. Cold working B. Tempering C. Shill casting D. Heat treatment

There are two types of crankshafts, namely a) single piece and built up b) forged and turned c) rotary and stationary d) none of these

They are usually steel or steel casting A. Mild steel B. Carbon steel C. Fire box steel D. Drop-forge-dies

Thicker plates usually require excessive rivet sizes and for practical reasons the rivet diameter is made approximately a) 1.2t b) 1.2 sq.rt t c) 2t d) 2 sq.rt t

To obtain safe working pressure the critical pressure, should be at least ______ times the working pressure. a) 3 b) 4 c) 5 d) 6

Tool steel can be hardened by A. Heating red hot and plunging into water B. Heating red hot and cooling in a blast of dry C. Heating red hot and plunging into linseed or cotton seed oil D. Any of the above, depending on type and use

Tool steel can be hardened by A. Heating red hot and plunging into a water B. Heating red hot and cooling in a blast of dry air C. Heating red hot and plunging into line seed or cotton seed oil D. Any of the above, depending on the type and use

Top surface joining two sides of thread in screw is known as a) Pitch b) Top flank c) Top land d) Crest

Torsional deflection is a significant consideration in the design of shaft and the limit should be in the range of ________ degrees/foot of length. a) 0.004 to 0.006 b) 0.08 to 1 c) 0.006 to 0.008 d) 0.008 to 1

Torsional deformation in transmission shafts should be limited to _______ in 20 diameters. a) 1 b) 2 c) 3 d) 4

Treating the weld as a line, the amount or inertia about center of gravity of a circular weld or diameter d would b a) pi d2/36 b) pi d2/6 c) pi d3/36 d) pi d3/4

Treatment process that produces a residual compressive stress at the surface and residual tension on the inside that results in considerable increase in fatigue strength for members on torsion / bending is known as: A. Partial quenching B. Heavy oil quenching C. Quenching D. Shallow quenching

Turn buckle has a) left hand threads on both ends b) left hand threads on one end and right hand threads on other end c) right hand threads on both ends d) no threads

Twist drills are made usually considered suitable machining holes having a length less than A. Two times their diameter B. Five times their diameter C. Ten times their diameter D. Twenty times their diameter

Twist drills are usually considered suitable for machining holes having a length less than A. Two times their diameter B. Five times their diameter C. Ten times their diameter D. Fifteen times their diameter

Two major factors, which determine the rpm of milling cutter, are the material being cut and _________. A. Number of teeth in cutter B. Diameter less grinder C. Time allowed to complete the job D. Depth of cutter

Two or more forces acting together, could be replaced by a single force with same effect in a mass called: a) couple of forces b) resolution of forces c) resultant d) concurrent of forces

Type of bolt intended for use in bolting wooden parts together or wood to metal. It has a short portion of shank just underneath a round head, which is designed to keep the bolt from turning in the wood when the nut is tightened. a) U-bolt b) Carriage bolt c) Eye bolt d) Stud bolt

Type of chuck wherein the work piece with standard diameter or size could be attached fast and quick specially small size work of mass production called: A. Lathe Drive Plate B. Clamp Toe Dog C. Collet Attachment D. Steady Center Rest

Typical values for Poisson's ratio of cast iron is in the range of a) 0.30 to 0.33 b) 0.27 to 0.30 c) 0.25 to 0.27 d) 0.35 to 0.45

Typical values for Poisson's ratio of steel is in the range of a) 0.30 to 0.33 b) 0.27 to 0.30 c) 0.25 to 0.27 d) 0.35 to 0.45

Under cutting is: A. An operating of cutting extra deep groove B. An operation of cutting a groove next to a shoulder on a piece of work C. Cutting from the of work piece D. An operation of cutting extra wide threads

Under sine principle the length of sine bar takes the place of A. Opposite side B. Adjacent side C. Hypotenuse D. Height

Under theories of failure for static loading of ductile material, the design stress is the a) endurance strength / factor of safety b) factor of safety / yield stress c) yield stress / factor of safety d) ultimate stress / factor of safety

Under theories of failure, the value of shear stress is ______ that of tensile stress. a) equal b) double c) half d) three times

Under very low deformation and at high temperature it is possible to have some plastic flow in a crystal at a shear stress lower than the critical shear stress. What is this phenomenon called? a) Slip b) Twinning c) Creep d) Shearing

Under which type of loading does fatigue occur? a) Static load b) Plane c) High load d) Repeated load

Uniting two pieces of metal by means of a different metal which is applied between the two in molten state a) Casting b) Welding c) Soldering d) Brazing

Unlike materials or materials of different thickness can be butt welded by a) Adjusting initial gap b) Adjusting time duration of current c) Control of pressure and current d) All of the above

Used as couplings, or in addition to overload, where there is danger of injury to machines or to material in process. a) Flange couplings b) Involute serrations c) King pins d) Shear pins

Web is a part of drill and is usually thicker __________. A. Beside the land B. Nearing the shank C. Close to the future D. At the tip portion

Weld metal impact specimen shall be taken across the weld with one face substantially parallel to and within a) 3/4in b) 1/32 in. c) ¼ in. d) 1/16 in

Weld spatter refers to a) Flux b) Filler material c) Welding defect d) Welding electrode

Welding defect called arc blow occurs in a) Arc welding using ac current b) Arc welding using dc current c) Gas welding d) MIG welding

What are considered as the most common keys? a) Flat key b) Square key c) Saddle key d) A & B above

What happens if the job is loosely fitted between centers in cylindrical grindings? A. The job will be out of round B. The job will be oversize C. The job will be thrown out D. The job will not rotate

What happens to a drill if the operating speed is too fast? A. Drill will crack B. Drill will become overheated and will blend C. Drill will become overheated and will drawn from steel D. Drill will become very dull and wear dust

What is referred to as gate? A. A passage through which metal is poured into mould B. A passage through which metal rises the mould is filled C. A passage that finally leads molten metal from the runner into the mould cavity D. A vent hole to allow for the hot gases to escape

What is the SAE specification number of molybdenum? A. SAE 2xxx B. SAE 3xxx C. SAE 4xxx D. SAE 5xxx

What is the common shop practice to prevent solder from running away from surface to be joined? A. All of these B. Surround the work with clay C. Introduce around the work rolled wet cloth D. Put asbestos sheeting around the work

What is the difference between brass and bronze? A. Brass is composed of copper and zinc while bronze is composed of copper and tin B. Brass is composed of copper and zinc while bronze is basically copper and tin plus non-ferrous alloy such as manganese, aluminum and chromium C. Bronze is reddish in color while brass is a mixture of copper and antimony D. Bronze is mostly an alloy of copper and tin while brass is a mixture of copper and antimony

What is the difference between the shaper and the planer? A. The tool of the shaper moves while the plane is stationary B. The shaper can perform slotting operation while planer cannot C. The shaper handles large pieces while the planer handles only small pieces D. The tool of the shaper moves in reciprocating motion while the tool in the planer move in rotary motion.

What is the function of rake angle of a cutting tool? A. To control the chip formation B. To prevent rubbing C. To determine the profile of too D. To determine whether the cutting action is oblique or orthogonal

What is the lip clearance angle of twist drill for generated work? A. 3 - 6° B. 8 - 10° C. 12 - 15° D. 18 - 22°

What is the material of hacksaw blade? A. High carbon steel B. High speed steel C. Low tungsten steel D. Any of these

What is the metal characteristic to withstand forces that causes twisting? a) torsional strength b) modulus of elasticity c) twisting moment d) elasticity

What is the most commonly used flux for brazing? a) Zinc chloride b) Zinc and tin c) Zinc and copper d) Zinc and lead

What is the property of a material which resists forces acting to pull the material apart? A. Shear strength B. Tensile strength C. Torsional strength D. Compressive strength

What is the recommended sheave diameter for haulage rope? a) 70d b) 71d c) 72d d) 73d

What is the recommended sheave diameter for standard hoisting rope? a) 40d b) 45d c) 50d d) 55d

What is the standard stock length? a) 16 ft b) 20 ft c) 24 ft d) all of the above

What supports for free feeding A. Side rake B. Side clearance C. Front clearance D. Top rake

What supports the top rake? A. Front Clearance B. Side Clearance C. Slide Rake D. None of these

What tool will be used in making wood pattern in the foundry shop? A. Band Saw B. Drill Machine C. Saw and Chisel D. Hammer

What type of welding that the hot flame and a metal rod are used? a) Seam welding b) Gas welding c) Spot welding d) Resistance welding

When a lathe is put into back gear, it will go A. At a slower speed backwards B. At the same speed backward C. Faster D. Slower

When a metal is cold worked, all of the following generally occur, EXCEPT: A. Ductility decreases B. Grains become equal-axed C. Tensile strength increases D. Slip or twinning occurs

When a part is constrained to move and heated, it develops what kind of stress? a) compressive stress b) principal stress c) shear stress d) tensile stress

When acceleration is zero, the a) velocity is constant b) velocity is negative c) velocity is variable d) velocity is zero

When an external gear is meshed with an internal gear the gears will rotate in A. Opposite direction B. Same direction C. Will not rotate D. None of these

When cutting a drill , it will squeal due to A. Drill being ground improperly B. Drill being too hot C. Insufficient lubrication D. Any of these

When cutting a long thing piece of metal A. Set the blade in the frame with the teeth facing toward you B. Turn the blade at right angles to the frame C. Turn the blade upside down in the frame D. Use a blade with fewer teeth per inch

When cutting material in a lathe, the harder the material being cut, the tool bit should have A. Less side rake B. More side rake C. More top rake D. No side rake

When cutting material in a lathe, the softer the material being cut, the tool bit should have A. Any of these B. Double top rake C. Less top rake D. More top rake

When does a chisel get blunt A. When it is properly heat treated B. When it is not properly heat treated C. When it is properly tempered D. When it is not properly tempered

When drilling a hole in a piece of work held in a lathe chuck one would use the A. Head stock B. Compound rest C. Cross-feed D. Tailstock and drill chuck

When facing off a piece of material in the lathe chuck the bit must be set A. Above center B. At the center C. Below the center D. Off center

When filling a piece of metal in a lathe if short quick strokes are used the finished piece will probably A. Be out of round B. Be perfect C. Have small flat areas on the surfaces D. A and C

When hard material is to be drilled, the cutting angle of the drill should be _____ 118° A. Less than B. Equal to C. More than D. Either more than or less than

When large number of components are turned and parted off a bar the chuck generally used is the _____. A. Collet chuck B. Four Jaw chuck C. Magnetic chuck D. Two jaw chuck

When lathe tool bit burns, it means that the A. Speed is too low B. Speed is too fast C. Material is too hard D. Material cannot be cut

When outside diameter of a job is turned in relation to the internal hole, the job should be held A. In three jaw chuck B. Between center C. On face plate D. On lathe mandrel

When shear force is zero along a section, the bending moment at that section will be a) maximum b) minimum c) minimum or maximum d) zero

When soldering, flux is used for a) Keeping the metal from getting too hot b) Keeping the solder from running off the metal c) Keeping the tip of the soldering iron and clean d) Remove and prevent oxidation of the metals

When the hole is smaller than the shaft, it will take a force or pressure to put the cold part together. The allowance is said to be negative and is termed as: A. Negative fits of metal B. Positive fits C. Interchangeable D. Interference of metal

When the hole is smaller than the shaft, it will take pressure to put the parts together. The allowance is said to be negative and is termed A. Negative tolerance B. Negative allowance C. Negative fits D. Interference of metal

When the key is not fitted on all four sides experience has shown that, the permissible crushing stress is about ____________ times the permissible shear stress. a) 1.3 b) 1.5 c) 1.7 d) 1.9

When the location of bolt is such that it would normally be shear, it is better practice to use a a) dummy bolts b) mid-pins c) crank pins d) dowel pins

When the threads are of opposite hand, the driven screw moves rapidly is known as a) Bearing screw b) Compound screw c) Differential screw d) Set screw

When the velocity is changing, the acceleration is a) constant b) not constant c) variable d) zero

When turning a piece of round metal in a lathe, the front clearance should be smaller for A. Cutting angles B. Large-diameter cutting C. Small-diameter cutting D. None of these

When two or more tools are to be used through the same hole then __________ bushes are used in jigs A. Positive slip B. Negative slip C. Friction D. Slip

When two touching surface have a high contact pressure and when these surfaces have minute relative motion a phenomenon called a) Carving b) Friction c) Fretting d) Prestressing

When using a drill press the work should be held with A. The hand B. A gloved hand C. A vise or clamp D. Pliers

When using a drill press, the work should be held with A. A pair of pliers B. A vise clamp C. Gloves on D. The hand

When varying loads are applied that are not regular in their amplitude, the loading is called a) Repeated loading b) Random loading c) Reversed loading d) Fluctuating loading

Where does the feed motion takes place in a slotting machine A. During the cutting motion B. After each forward stroke C. At the end of the return motion D. After each double stroke

Where does the relieved cutters are reground A. On the circumstances B. Relieved cutters are not reground C. On the flank D. On the side faces

Which gauge is used to check the internal threads A. Plug gauge B. Ring gauge C. Thread plug gauge D. Thread ring gauge

Which gears are used to connect parallel shafts lying in the same plane? a. Worm gears b. Bevel gears c. Herringbone gears d. Spiral gears

Which key normally used in wristwatches? a) Kennedy key b) Sunk key c) Tangent key d) None of the above

Which micrometer is available with extension rods A. Outside micrometer B. Inside micrometer C. Screw thread micrometer D. Combi micrometer

Which of the following angles equal the pitch angle? a. Back angle b. Front angle c. Face angle d. Root angle

Which of the following best describe a milling machine? A. It is a machine equipment B. It is a machine tool C. It is a machine device D. It is a machine apparatus

Which of the following best describes the 0.2% offset yield stress? a) it is elastic limit after which a measurable plastic strain has occurred. b) it is the stress at which the material plastically strains 0.2%. c) it is the stress at which the material elastically strains 0.2% d) it is 0.2% below the fracture point of the material.

Which of the following conditions may cause error during knurling A. Surface speed too low B. Clamped length and toll too short C. Too much longitudinal feed D. Unnecessary support with tool stock center

Which of the following contact point metals has highest melting point A. Silver B. Tungsten C. Gold D. Copper

Which of the following does not affect the tensile strength of steel? A. Sulfur B. Cobalt C. Phosphorus D. Boron

Which of the following furnace is used for manufacture of cast iron A. Cupola furnace B. Crucible furnace C. Electric furnace D. all of these

Which of the following gasket materials should be used on a Freon system? A. Metallic B. Asbestos C. Rubber D. A and B

Which of the following gears that are of the same and transmit motion at right angles? a. Herringbone gears b. Spur gears c. Miter gears d. Rack gears

Which of the following gives greater hardness, cutting toughness and fine grain structure? A. Chromium B. Nickel C. Tungsten D. Vanadium

Which of the following gives greater hardness, cutting toughness and resistance to wear and tear? A. Chromium B. Tungsten C. Nickel D. Vanadium

Which of the following has its angle 30° and is used for giving impression on soft metals? A. Center punch B. Dot punch C. Prick punch D. Hollow punch

Which of the following has its angle 60° and is used for dotting after marking the lines on general works? A. Center punch B. Dot punch C. Hollow punch D. Prick punch

Which of the following has its angle 90° and is used to give deep marks to the location of drill A. Center punch B. Dot punch C. Hollow punch D. Prick punch

Which of the following has the highest specific strength of oil structure materials? A. Chromium alloys B. Magnesium alloys C. Titanium alloys D. None of these

Which of the following improves red hardness? A. Boron B. Cobalt C. Copper D. Columbium

Which of the following is a primary cell? A. Mercury - oxide B. Lead - acid C. Nickel - iron - alkaline D. Nickel - cadmium - alkaline

Which of the following is a product of blast furnace A. Wrought iron B. Cast iron C. Pig iron D. Gray iron

Which of the following is not a classification of an iron ore? A. Hematite B. Magnetite C. Sulfurite D. Siderite

Which of the following is not a classification of iron core? A. Siderite B. Hematite C. Sulfurite D. Magnetite

Which of the following is not a common drill shank A. Bit B. Fluted C. Straight D. Taper

Which of the following is not a common term relating to the classification of fits? A. Tunking B. Snug C. Medium Force Fit D. Bound

Which of the following is not a kind of cast iron? A. Gray iron B. White iron C. Malleable iron D. Lead iron

Which of the following is not a kind of mandrel? A. Expanded B. Extended C. Contraction D. Taper

Which of the following is not a method of non-destructive testing of steel castings and forging? A. Radiography B. Magnetic particle C. Ultrasonic D. Chemical analysis

Which of the following is not a primary cess? A. Carbon zinc B. Silver oxide C. Silver zinc D. Nickel - cadmium

Which of the following is not a sound absorptive materiall A. Rug B. Mirror C. Carpet D. Heavy drape

Which of the following is not a structural class of steel? A. High speed steel B. Tool and die C. Low carbon D. High carbon

Which of the following is not part of a lathe machine? a. Fan b. Carriage c. Headstock d. Tail Stock

Which of the following is not part of combination set? A. Bevel protractor B. Dial gage C. Scale D. Try square

Which of the following is not the work of a machinist? A. Reboring B. Overhauling C. Grinding D. Boring

Which of the following is not used to temper steel? A. Oil bath B. Brine/salt bath C. Steam bath D. Water bath

Which of the following is the best conductor of electricity? A. Graphite B. China clay C. Porcelain D. Ceramics

Which of the following is the cutting speed of brass? A. 30 m/min B. 40 m/min C. 50 m/min D. 60 m/min

Which of the following is the different of the shear equation? a) bending moment b) load on the beam c) tensile strength of the beam d) slope of the beam

Which of the following is the rate at which the velocity is changing? a) Acceleration b) Linear c) Motion d) Vertical

Which of the following is used for all general purposes? A. Production process B. Puncher slotter C. Tool room slotter D. None of these

Which of the following is used to connect the shafts at an angle but lying in the same plane? a. Helical gears b. Worm and worm wheel c. Spur gears d. Herringbone gears

Which of the following keys that is square or flat and tapered with head? a) Pin key b) Saddle key c) Gib-head keys d) None of these

Which of the following material is used for shafting? a) AISI 3240 b) AISI 3150 c) AISI 4063 d) AISI 33000

Which of the following materials is used for making permanent magnets? A. Carbon steel B. Platinum cobalt C. Alnico D. All three mentioned

Which of the following metal is non-magnetic? A. Manganese steel B. Cast steel C. Alloy steel D. Cast iron

Which of the following metals can be suitably welded by TIG welding? a) Aluminum b) Magnesium c) A and B above d) Stainless steel

Which of the following metals gets deposited to provide an undercut for chromium? A. Copper B. Silver C. Bronze D. Lead

Which of the following metals has the highest specific heat capacity at 100 C? A. Aluminum B. Bismuth C. Copper D. Iron

Which of the following metals increases the strength without sacrificing the ductility of the carbon steels? A. Brass B. Nickel C. Bronze D. Copper

Which of the following metals is easy to chisel? A. Alloy steel B. Manganese steel C. Stainless steel D. Cast iron

Which of the following metals will respond to heat treatment? A. Cast iron B. Wrought iron C. Medium carbon steel D. Low carbon stee

Which of the following processes that hydraulic fluid acts as transfer media. A. Electron Beam Machining B. Electro - discharge Machining C. Iron Beam Machining D. Water Jet Machining

Which of the following produced a series of spot welds made by circular or wheel type electrodes? a) Steam welding b) Mash welding c) Spot welding d) Steam welding

Which of the following quick return mechanisms is most widely used in most of the slotters A. Slotter linl and gear mechanism B. Slotter disc mechanism C. Hydraulic mechanism D. Whitworth mechanism

Which of the following types of packing would be used on steam points? A. Asbestos B. Neoprene C. Metallic D. A or C

Which of the ropes will be most flexible? a) 6 by 7 b) 6 by 19 c) 6 by 37 d) 8 by 19

Which one is the hardness material? A. Steel B. Diamond C. Bronze D. Brass

Which one is the incorrect statement about true stress-strain method? a) it is more sensitive to changes in mechanical conditions. b) There is no such phenomenon like true stress or true strain. c) This method can be used for compression tests as well. d) True stress is load per unit area and similarly true strain is determined under actual conditions.

Which one that has no nut and turns into a threaded hole? a) Rivet b) Screw c) Stud bolt d) U-bolt

Which onwe is different from the group? A. Cyaniding B. Nitriding C. Flame hardening D. Electroplating

Which part of the file is not hardened A. Body B. Heel C. Point D. Tang

Which tool does not belong to the group? A. Vice Grip B. Feeler Gage C. Torque Wrench D. Adjustable Wrench

Which type of bolt that finished all over, usually having coarse threads? a) Coupling bolt b) Machine bolt c) Stud bolt d) Automobile bolt

Which type of gear has a ratio of 1:1? a. Herringbone gears b. Miter gear c. Internal gear d. Spur gear

Which type of gear is a cylinder, wheel or disk on the surface of which is cut parallel teeth? a. Bevel gear b. Helical gear c. Spur gear d. Worm gear

While soldering the flux is used because A. It assists for quick melting and increasing the fluidity of solder B. It saves the part from oxidation C. It takes the molten metal on all surfaces D. All of these

Why hacksaw blade teeth get dull? A. Coarse pitched blade is used on hard metal B. Too much speed and pressure C. Pressure is not released in return stroke D. Any of these

Wire ropes are made from cold-drawn wires that are first wrapped into a) layer b) segment c) strands d) none of these

Wire ropes are made from cold-drawn wires that are first wrapped into a) pulp b) strands c) helices d) hemp

____ is a kind of center, which is being attached and meshed to the tailstock spindle, which is also static while the rack is rotating. A. Dead CenterLive Center B. Focal Center C. Work Center

____ of metals wherein strength of metal is increased and the ductility increases the heating at a relatively low temperature after cold working A. Cluster B. Screw dislocation C. Solid solution hardening D. Strain aging

_____ is a test for pipe used for coiling in sizes 2 inches. A. Flaring B. Crush C. Flange D. Bend

_____ used to machine flat or curved surfaces with a tool, which moves in a reciprocating motion. A. Planer B. Shaper C. Grinder D. Lathe

________ are hardened steel devices with a taper shank on one end and a 60 degree point at the other end. A. Tailstock centers B. Lathe centers C. Live centers D. Dead centers

_________ are generally used on those dimensions involved in a fit A. Bilateral B. Unilateral C. Lateral D. None of these

__________ is the difference between the high and low limit of size A. Clearance B. Allowance C. Tolerance D. Fits

___________ gives greater hardness and resistance to forging and drawing A. Molybdenum B. Vanadium C. Tungsten D. Cobalt

_____________ means the increasing hardness and strength by plastic deformation at temperatures lower than crystallization range? A. Case Hardening B. Strain Hardening C. Nitriding D. Stiffness

_____________ to prevent leakage in dynamic seal. A. Gaskets B. Seals C. Packing D. Felts

a side cutting tool used for accurately finishing the straight or tapered holes already drilled or bored A. Reamer B. Swaging C. Peening D. Tapping

for cutting gear teeth in a shaper, the _________ tool is use A. form B. "V" shape C. Round nose D. Gooseneck

he twist drill has its point thinned in order to A. Reduce the hole diameter B. Increase the rake angle C. Locate in the center punch mark D. Reduce the axial pressure

in a standard dividing head the ration between the worm wheel and the worm is A. 10:1 B. 20:1 C. 30:1 D. 40:1

t is also known as conventional milling in which the rotation of the cutter is in a direction opposite to the direction of the table movement. A. Down milling B. Up milling C. Straddle milling D. Gang milling

t is the process by which the length of a work piece is reduced. A. Drawing B. Drifting C. Jumping D. Upsetting

the best procedure when filling a piece of metal in a lathe is to take _________ A. A long fast stroke B. Long slow stroke C. Short even stroke D. Short fast stroke

the straddle milling is done by means of two: A. side milling cutters B. plain milling cutters C. face milling cutters D. form cutters

A body having identical properties all over is called: A. Ductile B. Elastic C. Homogenous D. Isentropic

A cam with a roller follower would constitute which type of pair? a) close pair b) higher pair c) lower pair d) open pair

A __________ gage is used to check the size of hole/bore A. Feeler B. Plug C. Tap D. Dial

A __________ is used between the cutting tool and work piece to minimize the friction heat. A. Lubricant B. Coolant C. Water D. Alcohol

An intermittent weld, lightly done to hold the members in position for assembly purposes or for principal welding a) Edge weld b) Tack weld c) Back welds d) Half welds

An intermittent weld, lightly done to hold the members in position for assembly purposes or for the principal welding. a) Spot weld b) Tack weld c) Butt weld d) Fillet weld

Angle plate is made of A. Cast steel B. Closed grain cast iron C. High speed steel D. Tool steel

Angle plate is used for A. Cutting tapers in a lathe B. Cutting gears in a shaper C. Cutting gears in a milling D. Fixing job outs angle in a grinder

Could be defined as simply push and pull is known as a) work b) force c) inertia d) power

During MIG welding the metal is transferred in the form of a) A fine spray of metal b) Continuous flow of molten metal c) Electron beam d) Solution

If the taper shank of the drill is too large as compared to the spindle hole, the __________ is used. A. Drill socket B. Planer C. Electric drill D. Copping saw

If the velocity of mass is the same all the time during which motion takes place is called: a) Deceleration b) Uniform motion c) Acceleration d) None of these

If there is no fit, a liberal tolerance of the order _______ in machining work could be permitted. A. -+0.020 B. -+0.010 C. -+0.09 D. -+0.05

If two principal stresses are zero, the state stress is a) biaxial b) monoaxial c) triaxial d) uniaxial

If you use a dry grinding wheel for sharpening tool bits, dip the end of the bit in water frequently to prevent A. Annealing the cutting edge of the bit B. Burning your fingers C. Hardening of the tip D. The tip from crystallizing

Imparts of reciprocating motion to a single point cutting tool called a. Dividing Head b. Slotting Attachment c. Circular Pitch d. Circular Milling Attachment

What are the most commonly used materials as photo cathode for the photoelectric emission? A. Barium and calcium B. Cesium and rubidium C. Arsenic and boron D. Thorium and tungsten

What factors can modify the recommended cutting speed of known work piece? A. Rough cutting of work piece B. Modify the shape of the cutting tools C. Use correctly shape of the cutting tools D. Depth of cut

DUASO MULTIPLE CHOICE

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