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Orifices and Mouthpieces MCQs
The shape of a mouthpiece that produces the highest discharge coefficient is
14. The shape of a mouthpiece that produces the highest discharge coefficient is:
- Converging
- Diverging
- Converging-diverging
- Cylindrical
Answer: C) Converging-diverging
Explanation:
The converging section accelerates the fluid and decreases pressure, while the diverging section slows down the fluid and allows for pressure recovery. This combination of effects results in improved discharge coefficients compared to simple converging or diverging shapes.