Exam (elaborations)
CWB Level 2 Closed Book Exam Questions with Correct Answers
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CWB Level 2 Closed Book Exam Questions with Correct Answers Reverse polarity refers to the use of a: a) AC power source, electrode + b) DC power source, electrode + c) AC power source, electrode - d) DC power source, electrode - - Answer-b) DC power source, electrode + Which welding ...
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