MCQOPTIONS
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| 1. |
What is the pressure in the vacuum chamber while carrying out oil impregnation of bearings? |
| A. | 1mm H<sub>2</sub>O |
| B. | 1mm Hg |
| C. | 0.5mm Hg |
| D. | -1mm Hg |
| Answer» C. 0.5mm Hg | |