MCQOPTIONS
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| 1. |
What are the values of entrance angles that vary in Laser drilling process? |
| A. | 0.1 – 1 oC |
| B. | 1 – 5 oC |
| C. | 15 – 90 oC |
| D. | 90 – 150 oC |
| Answer» D. 90 – 150 oC | |