MCQOPTIONS
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| 1. |
How does the divergence angle vary along a bell-shaped nozzle? |
| A. | Sharply increases, then decrease |
| B. | Sharply decreases, then increase |
| C. | Remains constant for a while and then increases |
| D. | Remains constant for a while and then decreases |
| Answer» B. Sharply decreases, then increase | |