Question: 29. Work is positive and electrode is negative in: * (1.5 Points) A.C. Reverse Polarity A.C. Straight Polarity D.C. Reverse Polarity D.C. Straight Polarity

29. Work is positive and electrode is negative in: * (1.5 Points) A.C. Reverse Polarity A.C. Straight Polarity D.C. Reverse Polarity D.C. Straight Polarity 30. Poor penetration defect in welding is usually caused by: (1.5 Points) arc length is set too low weiding current is set too low the speed of travel is too slow

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