?The GMAW-S process does not produce enough heat to make quality welds in sections much thicker than 1/4 in. (6 mm) unless it is used for the root pass on a grooved weld or to fill gaps in joints.
A. ?1/2 in. (13 mm)
B. ?5/16in. (8 mm)
C. ?1/4 in. (6 mm)
D. ?1/8 in. (3 mm)
Answer: C
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