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Which one of the following arc welding processes has the lowest heat transfer factor:


A) FCAW
B) GMAW
C) GTAW
D) SMAW

E) A) and B)
F) B) and C)

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Which one of the following arc welding processes uses a nonconsumable electrode:


A) FCAW
B) GMAW
C) GTAW
D) SMAW

E) C) and D)
F) A) and C)

Correct Answer

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Friction stir welding is a fusion welding process in which a rotating tool is fed along the joint line between two workpieces, generating friction heat and mechanically stirring the metal to form the weld seam:

A) True
B) False

Correct Answer

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