McqMate
| Q. |
A mouthpiece cannot be used under very large head because |
| A. | The variation in discharge is large |
| B. | Cavitation occurs at the vena contracta |
| C. | Of practical difficulties in contraction |
| D. | Vortex is created at the vena contracta |
| E. | The flow through mouthpiece is erratic |
| Answer» E. The flow through mouthpiece is erratic | |
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