Mech Eng 2653 Test #2

The applied forces in wire drawing are: A. Compression B. Tension

Tension

Which of the following characterizes the "Big Four" consumable electrode arc welding processes? The depth to width ratio is: A. Low (<1) B. About 1:1 C. High (>1)

About 1:1

When you have a three-part flame in OAW, you probably have too much: A. Oxygen B. Acetylene

Acetylene

Resin or filler material is polymerized to create a bond. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Adhesive Bonding

Additive manufacturing is being used for: A. Prototype manufacture B. Direct product manufacture C. Manufacture of rapid tooling D. All of these

All of these

Ink-jet deposition can build with; A. Wax B. Thermoplastic polymer C. Low-melting point metal D. All of these

All of these

Possible types of rapid tooling include: A. Jigs, fixtures, templates, and gages B. Patterns, molds, and cores C. Die casting dies D. all of these

All of these

Prototype products are used to: A. Assess form, fit, and function B. Evaluate possible concepts C. Provide a visual aid D. All of these

All of these

The "Perfect Metallurgical Bond" requires surfaces that are: A. Perfectly flat B. Perfectly clean C. Perfectly aligned D. All of these

All of these

An attractive feature of electron beam melting is: A. Able to produce fully-dense metal products B. Can work with reactive metals, like titanium C. Can work with high-temperature metals, like tool steels and superalloys D. All of these are attractive features

All of these are attractive features

The heat source for fusion welding can be: A. Gas combustion B. A laser beam C. An electric arc D. Any of the above

Any of the above

We can join ceramics to one another or join metals to ceramics by all of the following EXCEPT: A. Adhesive bonding B. Brazing C. Diffusion bonding D. Any of the deformation bonding processes

Any of the deformation bonding processes

The molten pool and hot metal of a fusion weld can be "protected" by: A. A vacuum B. Shielding gas C. A cover slag D. Any of these

Any of these

The forces required for diffusion bonding: A. Are only what is necessary to establish and maintain firm contact B. Must be great enough to induce plastic deformation

Are only what is necessary to establish and maintain firm contact

In resistance spot welding, we want the greatest electrical resistance to be: A. In the electrodes B. At the electrode-workpiece interfaces C. In the metal being joined D. At the interface between the metals being joined

At the inerface between the metals being joined

During cold forming, as deformation progresses, the material: A. Becomes weaker and more ductile B. Becomes stronger and more brittle C. Remains unchanged

Becomes stronger and more brittle

The temperature for diffusion bonding is ______ the melting point of the material being joined. A. Above B. Below

Below

To keep from burning holes in a thin sheet during arc welding (we want the shallowest penetration of the fusion zone), we would select this shielding gas A. Helium B. Argon C. Carbon Dioxide

Carbon Dioxide

The applied forces in extrusion are: A. Compression B. Tension

Compression

Additive or direct-digital processing begins with a: A. Computer file B. Part pattern C. Rigid die or tooling

Computer file

Low-angle wire drawing dies are often inefficient due to excessive: A. Contact friction B. Internal shear

Contact friction

If a flaw or defect is oriented parallel to stressed surface, it has the form of a: A. Crack initiator B. Crack propagator C. Crack arrestor

Crack arrestor

The chemistry (or composition) of the filler metal used for brazing and soldering is ____ that of the materials being joined. A. The same as B. Different from

Different from

If the hold-down pressure is too high in deep drawing, we will likely produce: A. Wrinkling of the side wall B. Tearing

Tearing

Adhesive bonding can be used to bond: A. Only similar materials to one another B. Virtually anything to anything

Virtually anything to anything

To produce a significant change in cross-sectional area using the extrusion process: A. We can use a single die B. We will need multiple dies and multiple passes

We can use a single die

To produce a significant change in cross-sectional area using the wire drawing process: A. We can use a single die B. We will need multiple dies and multiple passes

We will need multiple dies and multiple passes

No slag forms, so slag removal is not required. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

GMAW

Only a shielding gas is used for protection. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

GMAW

The widest variety of both ferrous and nonferrous metals can be welded A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

GMAW

This process is also TIG welding for Tungsten Inert gas. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

GTAW

Welds made with this medium rate of heat input process have a 1:1 depth/width. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

GTAW

When helium gas is used for shielding, this process has been called "Heliarc" welding. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

GTAW

These two processes use non-melting tungsten electrodes. A. OAW & EBW B. GTAW & OAW C. GTAW & PAW D. GTAW & EBW

GTAW & PAW

If we are producing a large part that requires a considerable amount of deformation, we would prefer to do the forming process at a _____ temperature. A. High B. Low

High

Resistance spot welding welding has a ___ rate of heat input. A. Low B. Medium C. High

High

To produce spray transfer, we would want to use ___ voltage and current and ___ gas. A. Low, CO2 B. High, CO2 C. Low, argon D. High, argon

High, argon

In all metal forming processes, the applied stresses must be ____ than the yield strength of the material. A. Higher B. Lower

Higher

Which of the following characterizes the "Big Four" consumable electrode arc welding processes? The rate of heat input is: A. Low B. Medium C. High

Medium

The Fused Deposition Modeling process bears similarly to : A. A hot melt glue gun B. A ink-jet printer

A hot melt glue gun

In the 3-D Printing process the scanning ink-jet is depositing: A. Molten build material B. A liquid binder that joins the powder particles

A liquid binder that joins the powder particles

In stereolithography process, a layer is cured by ___. In the solid ground curing process, the layer is cured by ____. A. A scanning UV laser; a single shot of UV light B. A single shot of UV light; A scanning UV laser

A scanning UV laser; A single shot of UV light

The joint clearance (at the temperature of the braze) should be on the order of ____ to obtain a high strength join in brazing or soldering. A. .3 in B. .03 in C. .003 in

.003 in

Because a fusion weld is actually a mini-casting, one might expect the possibility of: A. Shrinkage B. Gas porosity C. Both of these

Both of these

Direct metal deposition and laser engineered net shaping both use: A. A laser B. A stream of powder particles C. Both of these

Both of these

Brazing can be used to join: A. Only similar or identical materials B. Both similar and dissimilar materials, even metals to ceramics

Both similar and dissimilar materials, even metals to ceramics.

Capillary action draws melted filler metal into the joint. The materials being joined do not melt. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Brazing and Soldering

The primary difference between brazing and soldering is: A. Brazing is performed at higher temperatures than soldering B. Soldering is performed at higher temperatures than brazing

Brazing is performed at higher temperatures than soldering

Additive manufacturing builds parts: A. By joining block segments B. Building layer-by-layer

Building layer by layer

The forging process that produces complex shaped parts to near-net shape is: A. Open-die forging B. Closed die forging

Closed die forging

Foil is most likely rolled on this type of mill: A. 2-high B. 4-high C. Cluster D. 3-high

Cluster

A noticeable dent or impression is produced at the where two pieces of sheet are being joined. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Cold indentation welding

Less weld distortion occurs when the fusion zone is: A. shallow and wide B. Deep and narrow C. Deep and wide

Deep and narrow

The most desirable fusion zone profile would be: A. Shallow and wide B. Deep and narrow C. Deep and wide

Deep and narrow

Which of the following processes does NOT produce a product with constant cross-section shape? A. Wire drawing B. Extrusion C. Rolling D. Deep drawing

Deep drawing

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. Shallow penetration B. Deep penetration

Deep penetration

Materials are squeezed together under pressure, resulting in plastic deformation and the creation of uncontaminated surfaces. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Deformation Bonding

A solid-state bond is formed by holding materials in contact for long period of time at elevated temperature. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Diffusion Bonding

Brazing and soldering can be used to join: A. Only similar metals B. Dissimilar metals and even dissimilar materials

Dissimilar metals and even be dissimilar materials

Because of the extreme depth-to-width, this process requires the most precise fit-up or alignment of the pieces being joined. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

EBW

Can produce welds with a depth-to-width ratio as high as 25:1. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

EBW

Since it requires a vacuum, high voltage, X-ray shielding, etc, this is probably the most expensive of the processes listed above. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

EBW

Voltage as high as 100,000 volts are employed. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

EBW

When the forces of deformation are compressive, the deformation should be performed: A. Cold B. Hot C. Either hot or cold is acceptable

Either hot or cold is acceptable

The temperature required for diffusion bonding two materials is: A. Room temperature B. Elevated, but below the melting point of either material C. Above the melting point of either material

Elevated, but below the melting point of either material

The temperature required for diffusion bonding two materials is: A. Room temperatures B. Elevated, but below the melting point of either material C. Above the melting point of either material

Elevated, but below the melting point of either material

A unique characteristic of a good bond is a wavy interface between the two base metals. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Explosive welding

Extremely large sheets of material can be welded to one another by this process. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Explosive welding

Impurities are stripped from the surfaces to be joined by a venting jet of gas. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Explosive welding

Brazing requires lower temperatures than soldering. True or False?

False

Direct digital manufacturing can only be used to produce parts from plastics and polymeric materials. True or False?

False

The materials being joined must be brittle for deformation bonding process. True or False?

False

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. Fast cooling of the weld B. Slow cooling of the weld

Fast cooling of the weld

The flux is on the inside of a tubular consumable metal electrode. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

Flux cored Arc Welding

Of the two rational welding processes, this one produces the larger HAZ. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Friction welding

Since the joint material is a mix of the two materials being joined plus possible filler material, all compositions must be similar. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Fusion Welding

Portions of the material being joined melts and flows as liquid (along with possible filler metal) to fill the joint. A. Deformation Bonding B. Adhesive Bonding C. Fusion welding D. Diffusion Bonding E. Brazing and Soldering

Fusion welding

The portion of a weldment that melts during the joining process is called the: A. Fusion zone B. Heat-affected zone C. Unaffected base metal

Fusion zone

Is sometimes referred to as MIG (metal inert gas) welding. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

GMAW

Because the fusion zone normally solidifies quite rapidly, the fusion zone will typically have ___ strength. A "good" weld will normally break in the ____ zone. A. Poor; Fusion B. Poor; Heat affected C. Good; Fusion D. Good; Heat affected

Good; Heat affected

The maximum strength of a brazed joint is: A. About half the strength of the filler material B. Equal to the strength of the filler metal C. Greater than the strength of the filler metal

Greater than the strength of the filler metal

To minimize cracking, it is best if the materials being welded: A. Have little restraint B. Are highly restrained

Have little restraint

It is best if we can minimize the size of this region: A. Fusion zone B. Heat affected zone C. Unaffected base metal

Heat affected zone

The region of a weldment that is not melted, but has been heated above some critical temperature that causes a change in the structure and/or properties of the material is called the: A. Fusion zone B. Heat-affected zone C. Unaffected zone

Heat-affected zone

The hottest arc would be obtained with this shielding gas. A. Argon B. Helium C. Carbon Dioxide

Helium

The "Perfect Metallurgical Bond is: A. Easy to achieve B. Achievable depending on the base material C. Impossible to achieve

Impossible to achieve

The form of extrusion that has the best mechanical efficiency, since it eliminates billet-chamber friction, is: A. Direct extrusion B. Indirect extrusion

Indirect extrusion

Because a heavy spinning flywheel is used as the energy source in this process, very reproducible welds result. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Inertia welding

A non-reflective surface treatment may be required as preparation for welding. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

LBW

The heat source can be manipulated and positioned by mirrors. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

LBW

The high rate of heat input for this process produces welds with a 5:1 depth/width. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

LBW

Solid sheets of material are bonded in: A. Laminated object manufacturing B. Direct metal decomposition

Laminated object manufacturing

In brazing or soldering, the strength of the filler metal is ____ the strength of the material being joined A. The same as B. Greater than C. Less than

Less than

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. High distortion B. Low distortion

Low distortion

The time required to produce a diffusion bond is typically on the order of: A. Seconds B. Minutes or hours C. Days or months

Minutes or hours

Diffusion bonding can be used to join: A. Only similar metals B. Only ceramics C. Only metals, but the metals can be dissimilar D. Most combinations of metals and/or ceramics

Most combinations of metals and/or ceramics

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. Wide weld B. Narrow weld

Narrow weld

In an electric arc, the ionized shielding gas atoms are attracted to the: A. Positive pole B. Negative pole

Negative pole

Resistance welding is: A. Good for joining thick plates because of the high rate of heat input B. An excellent process for joining ceramic materials to one another C. Normally used to join thin sheets to one another

Normally used to join thin sheets to one another

It is the most portable of all welding techniques. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

OAW

Operating conditions can be adjusted to be carburizing, oxidizing, or neutral. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

OAW

The low rate of heat input produces a large heat affected zone. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

OAW

The molten metal weld pool is very shallow (depth-to-width of about 1:3. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

OAW

Metal deformation processes can be used to shape: A. All materials B. Metals and ceramics C. Only ductile materials

Only ductile materials

The deformation bonding processes can be used to join: A. All metals B. All metals and ceramics C. Only ductile metals

Only ductile metals

Which of the following characterizes the "Big Four" consumable electrode arc welding processes? Can be used to join: A. Only similar materials B. Both similar and dissimilar materials

Only similar materials

Compared to fusion welding, in brazing and soldering operations; A. Only the material being joined melts B. Only the filler melts C. Both melt

Only the filler melts

The blacksmith's hammer and anvil is actually a crude form of: A. Open-die forging B. Closed die forging

Open die forging

A "keyhole" can be produced, assuring complete penetration with minimum distortion. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

Has the smallest heat affected zone of the arc welding processes. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

The arc can be as long as 1-inch without going out. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

The heat of the arc is most highly concentrated in this arc welding process: A. SMAW B. PAW C. GTAW D. GMAW

PAW

The high rate of input results is a fusion zone with a depth-to-width of about 3:1. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

The two modes of operation are transferred arc and nontransferred arc. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

This process requires two separate flows of gas (an orifice gas and a shielding gas). A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

PAW

In the stereolithography process, the build material is: A. Metal powder B. Photocurable polymer C. Molten plastic

Photocurable polymer

The orifice gas pressure is highest to produce: A. Conventional melt-in PAW B. Keyhole welding with PAW C. Plasma cutting

Plasma cutting

Backup rolls are used to: A. Keep the width constant B. Produce uniform thickness C. Eliminate friction

Produce uniform thickness

Crowning of rolls is done to: A. Keep the width constant B. Produce uniform thickness C. Eliminate Friction

Produce uniform thickness

Electrons leave the workpiece surface and hot ionized gas atoms or molecules strike the workpiece surface during: A. SPDC (straight polarity) or DCEN B. RPDC (reverse polarity) or DCEP C. AC

RPDC (reverse polarity) or DCEP

High currents are generally required, often in excess of 10,000 amps. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

RSW

The electrode comes into direct contact with the workpiece, and some degree of force is applied. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

RSW

This process does not require any form of external "protection", since the weld location is fully isolated from any undesirable environment. A. Gas Tungsten Arc Welding (GTAW) B. Plasma Arc Welding (PAW) C. Oxyacetylene Welding (OAW) D. Electron Beam Welding (EBW) E. Laser Welding (LBW) F. Resistance Spot Welding (RSW)

RSW

In the selective laser sintering process, the unfused powder: A. Is vacuumed away between each layer B. Remains in place to serve as support

Remains in place to serve as a support

During hot forming, the strength of the material: A. Increases B. Decreases C. Remains unchanged

Remains unchanged

The primary role of of the flux in brazing or soldering is to: A. Remove oxides and other impurities (ex clean the base metal surfaces) B. Reduce the melting temperature of the filler metal C. Reduce the melting temperature of the material being joined

Remove oxides and other impurities

The product is a layered sheet or plate material, like the "sandwich" stock for US quarters. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Roll bonding

An example of a process where tool-workpiece friction is helpful is: A. Rolling B. Forging C. Extrusion D. Deep drawing

Rolling

Wire drawing and deep drawing are almost always performed at ____ temperature. A. Room B. Elevated

Room

Has the largest fusion zone area. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SAW

Overhead of vertical welding cannot be performed. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SAW

Since it has the deepest penetration it can join thick pieces of steel in a single welding pass A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SAW

Because it is limited to the lowest currents, it has the slowest deposition rate and shallowest penetration. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

Finite length "stick" electrodes are used. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

Requires the least expensive equipment. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

The flux is a coating on the outside of the electrode. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

This process is NOT continuous- (frequently interrupted to change electrodes). A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

To minimize hydrogen (moisture) pick-up, special electrode storage may be required. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

SMAW

The pressure applied in diffusion bonding: A. Simply creates firm elastic contact B. Must be sufficient to induce plastic deformation

Simply creates firm elastic contact

Because of the high rate of heat input, electron beam welding has a very ____ HAZ. A. Small B. Large

Small

To produce thin sheet (such as foil), we need to use ___ diameter contact rolls. A. Large B. Small

Small

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. Small cross-section area B. Large cross section area

Small cross section area

A high rate of heat input is usually desirable in welding. Which of the following characteristics are associated with a high rate of heat input? A. Small heat affected zone B. large heat affected zone

Small heat affected zone

This type of metal transfer is generally preferred when welding thin material: A. Globular B. .Spray C. Short circuit

Spray

The quick freezing of the fusion zone usually results in the creation of: A. Weak metal B. Strong metal

Strong metal

If a material exhibits seed sensitivity, as speed increases, it will become: A. Weaker and more ductile B. Stronger and more brittle

Stronger and more brittle

The arc is buried beneath a layer of flux and is not visible to observers. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

Submerged Arc Welding

Has the highest welding currents of the consumable electrode processes. A. Shield Metal Arc Welding (SMAW) B. Gas Metal Arc Welding (GMAW) C. Flux cored Arc Welding (FCAW) D. Submerged Arc Welding (SAW)

Submerged arc welding

What is the basis of your answers to question 10? A. The basic design of a lap joint B. The lower strength of the filler metal C. The "thin specimen effect"

The "thin specimen effect"

Which of the following characterizes the "Big Four" consumable electrode arc welding processes? Employs an electrode that is of: A. A different chemistry as that being welded B. The same material being welded

The same material being welded

The answer to question 7 actually corresponds to: A. The smallest gap where capillary action can pull in liquid B. The largest gap where capillary action still pulls in liquid

The smallest gap where capillary action can pull in liquid

Because of the low rate of heat input, oxyacetylene welding is best suited to the joining of: A. Thick Steel B. Thin steel C. Al and Cu D. All of these

Thin steel

Arc length is defined as the distance from the : A. tip of the electrode to the surface of the workpiece B. top of the workpiece to the bottom of the fusion zone

Tip of the electrode to the surface of the workpiece

The hottest location in an oxyacetylene flame is at the: A. Tip of the torch B.Tip of the inner cone C. Tip of the outer envelope

Tip of the inner cone

Penetration is defined as the distance from the: A. Tip of the electrode to the surface of the workpiece B. Top of the workpiece to the bottom of the fusion zone

Top of the workpiece to the bottom of the fusion zone

Direct digital manufacture is attractive for small quantity production or even one of a kind products. True or False?

True

Hollow investment casting patterns collapse inward when melted, eliminating the possibility of ceramic shell or mold cracking. True or False?

True

MS&T has a very active program in additive processing or direct-digital manufacturing. True or False?

True

With direct digital manufacturing it is easy to make a change in a part after the design has been set or multi-part production run as been started. True or False?

True

With direct digital manufacturing there is no penalty for added part complexity. True or False?

True

A high-frequency oscillation is used to break up surface contaminants and bond thin sheets of metal. A. Cold indentation welding B. Friction welding C. Roll bonding D. Inertia welding E. Ultrasonic welding F. Explosive welding

Ultrasonic welding

The thickness of a rolled sheet or plate can be made more uniform by all BUT: A. Crowning the rolls B. Use back up rolls C. Apply front and back tensions D. Use smaller diameter rolls

Use smaller diameter rolls

The least desirable transfer mode is: A. Spray B. Globular C. Short circuit

short circuit