MCQOPTIONS
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| 1. |
The maximum propulsive efficiency of a turbo-jet engine is at a speed of |
| A. | 1000 km/h |
| B. | 2000 km/h |
| C. | 2400 km/h |
| D. | 3000 km/h |
| Answer» D. 3000 km/h | |