MCQOPTIONS
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MCQOPTIONS
| 1. |
During blasting, the workpiece is exposed to an abrasive air jet pressure of _____ MPa. |
| A. | 0 1 |
| B. | 0 0.2 |
| C. | 0.2 0.8 |
| D. | >1 |
| Answer» D. >1 | |