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During carbon arc welding | |
A. | electrode is connected to neutral if A.C. is used [Wrong Answer] |
B. | electrode is not connected to any voltage source when A.C. is used [Wrong Answer] |
C. | electrode is negative with respect to the work if D.C. is used [Correct Answer] |
D. | electrode is positive with respect to the work if D.C. is used [Wrong Answer] |