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| Q. |
Aeroderivative engines have pressure ratios |
| A. | greater than 30 |
| B. | lesser than 30 and greater than 20 |
| C. | greater than 50 |
| D. | none of the mentioned |
| Answer» A. greater than 30 | |
| Explanation: higher pressure ratios of greater than 30 are used in aeroderivative engines. | |
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