MCQOPTIONS
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MCQOPTIONS
| 1. |
In conduction welding, the laser beam is focused to a power density of order of _____ W/mm2. |
| A. | 10<sup>1</sup> |
| B. | 10<sup>2</sup> |
| C. | 10<sup>3</sup> |
| D. | 10<sup>4</sup> |
| Answer» E. | |