MCQOPTIONS
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| 1. |
%_Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by_% |
| A. | Adjusting the current |
| B. | Adjusting the duration of current |
| C. | Changing the electrode size |
| D. | Changing the electrode coating |
| Answer» D. Changing the electrode coating | |