MCQOPTIONS
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| 1. |
Arc blow is more common in: |
| A. | a.c. welding |
| B. | d.c. welding with straight polarity |
| C. | d.c. welding with bare electrods |
| D. | a.c. welding with bare electrodes. |
| Answer» D. a.c. welding with bare electrodes. | |