[Solved] Arc blow is a welding defect which is encountered

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Q.	Arc blow is a welding defect which is encountered
A.	In thermit welding
B.	In MIG welding
C.	In arc welding using a.c. current
D.	In arc welding using d.c. current
E.	In gas welding
Answer» D. In arc welding using d.c. current

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