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17 Cards in this Set
- Front
- Back
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The feature that distinguishes fusion welding from solid-state welding is that melting of the faying surfaces occurs during fusion welding but not in solid-state welding? (a) true (b) false |
true |
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Which of the following processes are classified as fusion welding? (3) (a) electro gas welding (b) electron-beam welding (c) explosion welding (d) forge welding (e) laser-beam welding (f) ultrasonic welding |
electro gas welding, electron-beam welding, laser-beam welding |
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Which of the following processes are classified as fusion welding? (2) (a) diffusion welding (b) friction welding (c) pressure gas welding (d) resistance welding (e) roll welding |
pressure gas welding, resistance welding |
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Which of the following processes are classified as solid-state welding? (3) (a) diffusion welding (b) friction stir welding (c) resistance spot welding (d) roll welding (e) thermit welding (f) upset welding |
diffusion welding, friction stir welding, roll welding |
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An electric arc is a discharge of current across a gap in an electrical circuit. The arc is sustained in arc-welding processes by the transfer of molten metal across the gap between the electrode and the work? (a) true (b) false |
false |
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Which one of the following arc-welding processes uses a nonconsumabke electrode? (a) FCAW (b) GMAW (c) GTAW (d) SMAW |
GTAW |
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MIG welding is a term sometimes applied when referring to which one of the following processes? (a) FCAW (b) GMAW (c) GTAW (d) SMAW |
GMAW |
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"Stick" welding is a term sometimes applied when referring to which one of the following processes? (a) FCAW (b) GMAW (c) GTAW (d) SMAW |
SMAW |
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Which one of the following arc-welding processes uses an electrode consisting of continuous consumable tubing containing flux and other ingredients in its core? (a) FCAW (b) GMAW (c) SAW (d) SMAW |
FCAW |
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Which one of the following arc-welding produces the highest temperature? (a) CAW (b) PAW (c) SAW (d) TIG |
PAW |
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Resistance-welding processes make use of the heat generated by electrical resistance to achieve fusion of the two parts to be joined; no pressure is used in these processes, and no filler metal is added (a) true (b) false |
false |
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Metals that are easiest to weld in resistance welding are ones that have low resistivities since low resistivity assists in the flow of electrical current (a) true (b) false |
false |
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Oxyacetylene welding is the most used oxy-fuel welding process because acetylene mixed with an equal volume of oxygen burns hotter than any other commercially available fuel (a) true (b) false |
true |
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The term "laser" stands for "light actuated system for effective reflection" (a) true (b) false |
false |
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Which of the following solid-state welding processes applies heat from an external source? (2) (a) diffusion welding (b) forge welding (c) friction welding (d) ultrasonic welding |
diffusion welding, forge welding |
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The term weldability takes into account not only the ease with which a welding operation can be performed, but also the quality of the resulting weld (a) true (b) false |
true |
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Copper is a relatively easy metal to weld because its thermal conductivity is high (a) true (b) false |
false |
