Topic: Fluid Machinery
The specific speed of pump and turbine respectively are given as
- A. $\frac{N\sqrt{P}}{H^{5/4}},\frac{N\sqrt{Q}}{H^{3/4}}$
- B. $\frac{N\sqrt{Q}}{H^{3/4}},\frac{N\sqrt{P}}{H^{5/4}}$
- C. $\frac{N\sqrt{P}}{H^{3/4}},\frac{N\sqrt{Q}}{H^{5/4}}$
- D. $\frac{N\sqrt{Q}}{H^{5/4}},\frac{N\sqrt{P}}{H^{3/4}}$
Answer: B. $\frac{N\sqrt{Q}}{H^{3/4}},\frac{N\sqrt{P}}{H^{5/4}}$
Explanation: Specific speed for pump $=\frac{N\sqrt{Q}}{H^{3/4}}$. Specific speed for turbine $=\frac{N\sqrt{P}}{H^{5/4}}$.