Which of the following is true of GMA spot welding?
A) Welds can only be made in thin materials.
B) The weld cannot be made if only one side of the materials to be welded is accessible.
C) The weld cannot be made when there is paint on the interfacing surfaces.
D) The burning back of the thin material allows the thicker metal to be melted.
Correct Answer:
Verified
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