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Arc welding machine uses only D.C. supply.(a) True(b) FalseThis question was posed to me in final exam.The query is from Arc Welding topic in portion Welding and Related Processes of Casting-Forming-Welding II

Answer»

Right answer is (B) False

Explanation: Arc welding machines are able of working on both ALTERNATING current supply as well as direct current supply. But mainly arc welding machines WORK on D.C. supply only, where the positive terminal is CONNECTED to the welding machine.



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