Blueprint
In relation to datum D in the figure, the entire surface of Datum E must lie within a band parallel to datum D and a width of
.0002
In the figure, when the bolts and nuts are assembled and a nominal 1.6250 diameter shaft is bored, how much movement will the bolts allow for the two fixture halves to separate?
.025
In the figure provided, what is the inside diameter of the crankshaft?
.250
A 4:1 scale drawing of a bearing is shown on a A size print. Using a ruler, you measure the inside diameter of the part on the paper and you get 1.50 inches. What is the actual part size in inches?
.375
In the figure provided, the threaded hole is ________ inches away from the center of the crank.
.375
In the figure provided, the actual diameter of the dashed line around the center of the crank is
.500 inches
A specification of LC1 for a .500 (1/20) diameter shaft would have a tolerance of
.5000/.4997
He tolerance for a LC1 fit .5000 diameter nominal hole would be
.5000/.5004
In the figure provided, what is the distance from the face to the center of the .500 diameter?
.563
The MMC dimension for a hole that is measured as 0.7000 +/- 0.01 would be
0.690
The MMC dimension for a hole that is measured as 0.7000 ±0.01 would be
0.690
A hole dimension is given as 1.000 +.005/-.000. When machining the hole, the machinist May decide to machine to a dimension of _________ so that tolerance on both sides of the dimension can be used.
1.0025(+/-.0025)
How many basic dimensions are on the print shown in the figure provided?
10
A site plan states that the exact compass direction of a property line is N 45°15'50" E 129.5'. This means that the property line is
129.5 ft long
The diameter for a part on a print is measured to be 4 units on a print. If the title block specifies the scale as 1:4, what is the actual diameter of the part?
16
What is the gear ratio if the number of teeth on the driven gear and pinion is 50 and 180 respectively?
18/5
The information provided in the title block indicates the scale as 2:1. If the OD of a part in the drawing is 5 inches, what is the real OD of the part?
2.5
The pressure angle for modern manufacturing designs is
20°
You're making a part with a specified length of 3.1255 inches. Referring to the figure provided, what is the minimum dimension an inspector would accept?
3.1247 inches
Convert 30.283° into a degree-minute-second format
30°16'58"
In the figure provided, what is the total quantity of items that make up the assembly?
32
In the figure provided, the maximum overall length and width of this part is
38.6 × 60 mm
Referring to the figure provided, you're asked to get the raw material to make the screw sleeve. You would probably look for
3⁄16-inch-diameter tubing with at least 1⁄32-inch wall thickness
A metric print is marked with a dimension of 130.0 millimeters. This is equivalent of
5.118 inches
What does .75 Ø- 8 Holes EQL SP - 2.5 BC mean?
8 holes which are 0.75 inches diameter in size and spaced 45 degrees apart
The location of Datum E can vary between which two values in this figure
8.51/8.49
A dimension of 3.25 inches converted to millimeters is
82.6 mm
A spur gear pinion and gear shown on a drawing have a diametral pitch of 12. The pitch radius of the pinion is 1.500 inches and the gear ratio is specified to be 1:3. On the print, you would expect the pitch diameter of the gear to be
9.00 inches
A print has a revision of several dimensions as per ECO 27514, which refers to
An engineering change order, #27514
The two 6.6mm holes in the figure provided
Are defined as datum D
Prints for parts with symmetry in one plane, such as shafts or plates,
Are usually shown using one view
A note on a drawing tells the machinist to " break all edges," but one of the edges has a dimension R.015. The machinist should
Assume this is an important dimension and machine this edge precisely to a .015 radius, while rounding the others with a file or sandpaper.
In the figure provided, which feature control frame applies geometric tolerances to a surface?
B
In the figure provided, which of the feature control frames applies two geometric tolerances?
B
A print specifies the dimension of a hole as 1.000 ±.05. This is an example of a _______ tolerance.
Bilateral
In the figure provided, which feature control frame identifies a feature as another datum?
C
A part 1" thick has a tapped hole called out as #10-32 UNF-2B x .50 DP, tap drill thru allowed. Which of the following sequences is correct?
Center drill, tap drill using a #21 drill .66 deep to thru, and tap .50 deep
Tolerances ranging from + .0000 to - 0.0004 would fall under ABEC
Class 3
Stronger threads, which are generated without the formation of chips, are created with a ________ tap.
Cold-forming
In the figure provided, which feature control frame applies a tighter tolerance to one datum than to another?
D
On hydraulic prints, drain lines are represented by
Dashed lines
A surface or feature that other features reference in a geometric tolerance is called
Datum
Proper conditioning of inside air is necessary for occupants' health; therefore its crucial for the HVAC designers to design ventilation systems that __________ for every room.
Deliver a minimum number of air changes per hour
A machinist submitted a part for heat treating. The dimension of the submitted part is .5200 but the part dimension provided in the print is .5000. If you're an quality inspector tasked with checking dimensions, what would be your next step
Determine if .02 is an appropriate tolerance based on the RHC scale.
A specification of RHC 54/58 and a block tolerance of +/-.0005 on the title block should tell the machinist the following:
Finish grinding after heat- treating us probably required
A _______ is a slab of cement several feet wide and a foot or more thick. It's poured underneath where foundation walls or building columns will be installed to support the walls above.
Footing
A part on a print requires a surface finish of 63 micro-inches. Which of the following can be used to obtain this surface finish?
Grinding
A thread dimension is called out as 1/4-20 UNC-2B with 65% minimum thread engagement. The proper tap drill is a #7, but the machinist uses a #11 drill. What will result?
Higher thread engagement (approximately 90%) due to the smaller tap
A metric print is provided by a company in Europe for a machined part. The layout of the views must be carefully reviewed because the print
Is probably first-angle projection with views in the opposite locations from the third-angle projection
A part is to be machined from plastic. A hole size is called out as .500" nominal with a note indicating that the hole is a press fit for a 1/2" dowel pin. The machinist is required to look up the proper fit. The table of tolerances for a/an ________ fit should be used.
LN4-LN6
A surface finish of 16 micro-inches can be created by
Lapping
The geometric symbol on the feature control frame provided is a
Line profile
The tool mark lay pattern shown on the surface finish symbol will determine the
Orientation of the part setup on the machine
A length of pipe will weigh the most when
Part dimensions are such that the pipe is in the MMC
A/an __________ included in a set of prints cuts the building horizontally, showing heating equipment, doors and windows, and room sizes.
Plan view
An architect's mechanical drawings would describe the __________ areas of the building.
Plumbing and HVAC
The symbol shown indicates that machining is
Prohibited
If the diameter of the external thread is decreased it would lead to
Reduced engagement with the mating part
The horizontal line used in basic welding symbols is called a __________ line.
Reference
The bearing in the figure provided shows two sets of dashed lines in the left side view that are
Representing the threaded hole into the .188 diameter
Changes in cross-sectional dimensions over the length of a U-shaped bracket can best be shown in a space-saving way by
Revolved sections
The value of 78 on the Rockwell A scale corresponds to a 66 on the ________ scale.
Rockwell D
A/an ________ view is used to show internal details that wouldn't be seen otherwise, and to show dimensions of internal features
Section
A line is placed under the dimension number if
The dimension isn't to scale
The surface finish symbol can be used to determine
The direction of tool marks, maximum roughness, and the type of machines surface (ground, polished, milled, and so on)
A drawing you're reading shows section lines on one part consisting of alternating solid and dashed 45-degree lines, while an adjacent part shows 45-degree double lines. From this, you conclude that
The first part is likely to be made of copper bronze, while the second is made of steel
A drawing contains a leader arrow pointing to a hole marked 9 x Ø.125 THRU EQL SP - 2.125 BC. From this description you know that
The holes are 40 degrees apart and go all the way through the part
In a mechanical drawing, the symbol for the thread fails to mention if the thread is right-handed or left-handed. What would a mechanical engineer deduce from this?
The thread is right-handed
The title block on a print specifies that all angles in the print have tolerance of ±0.5. However, the drawings on the print have specific tolerances for some of the angles in the part. What should a machinist do in such cases?
The tolerance provided in the title block should not be followed when specific tolerances are provided.
A thread specification of 1/4-20 UNC-2B on a print refers to a
Threaded hole
Runout can be defined as the
Total variation from a desired circular surface when the part is rotated one full circle around its axis
A rectangular block shows apparently square edges on a part you're supposed to machine from raw bar stock. Without any specific notation, you should
assume the angle is supposed to be 90° and let the tolerance block determine the acceptable limits of the angle on the finished part.
A print specifies the dimension of a hole as 1.000+/-.05. This is an example of a _________ tolerance.
bilateral
A welding symbol indicates that SAW process is required. This means it's
flat production welding.
Referring to the figure provided, a section view of the wall can be found
in detail B on Sheet 2.0S.
The disadvantage of using datum inside the part is
it would be an imaginary feature, thus leading to confusion while measuring.
Referring to the figure provided, the inside diameter could best be made by
machining and then grinding
In the left side view in the figure provided, the dimension of the slot on the bottom
must maintain perpendicularity with the bottom surface of the part.
A dimension listed on a drawing as (4.743) is a
reference dimension not to be used for inspection.
Referring to the figure provided, you're asked to pull 25 finished connecting rods from the inventory with which you'll create final assemblies. In the parts bins, you should look for parts that are
solid .125-diameter shafts 1.813 inches long, with threaded ends.
Referring to the figure provided, how far below the finished floor is the top of the footing?
4'-0"
A shaft that has a dimension of 4.250" +/- .005 is at MMC when the actual dimension of the part is
4.255
In the figure provided, what do the identifiers 400 cfm refer?
Airflow of 400 cubic feet per minute
A thread that's 0.5 inches in diameter with an 8 TPI is
Coarse
The ASME recommends the use of
Unidirectional dimensions for all drawings
Pressurized reservoirs that provide fluid to hydraulic equipment circuits are called
accumulators
The print provided is drafted in the _______ drawing.
third-angle projection
A _______ tap is used if the tap drill is unable to reach the required thread depth
Bottoming
A ________ is a triangle-shaped weld used when joining two pieces at an angle.
Fillet weld
You're machining a "rush" part for a repair order from a scale drawing print given to you by the project engineer. As you begin to machine an end feature, you find a dimension missing. To produce the part on time, you could
Go back to the project engineer or drafter to get the true dimension
A complex gear drawing done on a drawing sheet marked M-1 has many section views showing important interior details of the gear. One of the cutting-plane lines is marked at the ends with a callout in a circular bubble that says 7 above a line and M-3 below the line. To find this detail you would
Go to sheet M-3 and look for a detail labeled 7.
Where are revolved sections placed in a print?
In between break lines
Referring to the figure provided, the unenergized condition of
Switch PB1 and contact M1 is open
A two-view tapered cone shown in the title block of a print is the
Symbol used to show which projection angle is used for displaying orthographic projections
A _________ is a roof support designed to span the distance between walls and support the weight of roof components.
Truss
A bolt on a print is listed as a 1/4-32 without any additional abbreviations. What extra abbreviations would the bolt most likely have?
UNEF-2A
Plumbing is the overall combination of three systems: water supply, drainage, and
Venting
In the figure provided, the plans call for an 18" duct in the middle of the room, but the contractor wants to install 15" duct because they ran out of 18" duct that day. You respond that it's
not OK, because the pressure drop may affect how the system performs.
The header in the figure provided is a
one-inch-long tube with a .034 wall thickness, threaded on one end.
Referring to the figure provided, the inside diameter machining marks
will be perpendicular to the axis.
In the figure provided, part number 5 is
A connecting rod made of mild steel
Which of the following statements about a primary datum plane is correct?
A primary datum plane is the basis from which all subsequent measurements are made.
On a site plan for a building layout, surveyors have established an elevation mark on a print that reads REF 596.656' BM. In this case "BM" most likely means
A reference to a surveyor's benchmark.
The symbol for a weld to be made in the field during fabrication is a
A small flag at the point where the arrow meets the reference line.
The symbol for compressed air in a heating equipment is indicated as
A solid line with the letter A spaced periodically in the line
In the figure provided, the overall height of the crank
Can't be determined from these views alone
In the figure provided, the equipment marked D1-10 is a
Ceiling diffuser
Referring to the figure provided, the wall material shown in section is
Concrete
Lines with arrow heads to show distance relationships between the features on a drawing are called ________ lines.
Dimension
Clearance locational fits are used for parts that
Don't move and must be assembled or disassembled with precise locations
The figure provided indicates that the welder must weld a __________-shaped joint
Fillet
Referring to the figure provided, the components labeled
L1 and L2 represent connections to the power supply
Prints for electronically controlled hydraulic systems are divided by function. One print is for the fluid-control system, and a/an ________ is for electrical wiring.
Ladder diagram
A hole is at LMC when the diameter is at the
Maximum allowable tolerance
The three common dimensioning systems used on drawings in the United States are
Metric dimensioning, decimal-inch dimensioning, and fractional-inch dimensioning
Referring to the figure provided, the inside diameter machining marks
Must be removed after machining
Thick, unbroken lines on a drawing that show how the actual part would look are called _______ lines.
Object
When the print needs more information, a table called a ___________ shows details about doors, windows, plumbing and electrical sizes, and model numbers.
Schedule
To expose the interior features of a part, an imaginary cutting-plane creates a
Sectional view
Phantom lines are used to
Show different position or repetitive features
Exact compass bearings would be most likely found on
Site plans for buildings
In the figure provided, how many convenience outlets are shown inside the room on the print?
Six
T-shaped, square-bottomed, dovetailed, and v-shaped are all types of _________ in a machined part.
Slots
To get a smoother surface finish, use a/an ________ RMS number next to the machining symbol
Smaller
Basic dimensions are
exact dimensions without any tolerances.
