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| Q. |
To refrain from separation in subsonic nozzles, the expansion angle must not be more than |
| A. | 10 degrees |
| B. | 20 degrees |
| C. | 30 degrees |
| D. | 40 degrees |
| Answer» A. 10 degrees | |
| Explanation: if the angle is more than 10 degrees, there will be a drift amidst the nozzle. at any angle more than 10 degrees, this separation will occur. but the minimum value is 10 degrees. so, the answer is 10 degrees. | |
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