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| Q. |
In arc welding, the three elements to be controlled to obtain satisfactory welding operation are |
| A. | Current, voltage and speed of travel |
| B. | Current, voltage and arc length |
| C. | Current, arc length and speedoftravel |
| D. | Voltage, arc length and speed oftravel |
| Answer» A. Current, voltage and speed of travel | |
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