MCQOPTIONS
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| 1. |
Which current is used in Tungsten Inert-Gas (TIG) welding? |
| A. | Only A.C. can be used as welding current |
| B. | Only D.C. can be used as welding current |
| C. | Both A.C. and D.C. can be used as welding current |
| D. | None of the above |
| Answer» D. None of the above | |