MCQOPTIONS
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| 1. |
The power required by a machine having an efficiency of 80% for raising a load of 24 N through a distance of 36 m in 1 minutes is: |
| A. | 12 W |
| B. | 18 W |
| C. | 50 W |
| D. | 450 W |
| Answer» C. 50 W | |