Physics · Fluid Machinery
Select the correct relationship among specific speed (N s ), pump speed (N in rpm), discharge (Q in m 3 /s), and head per stage (H in m) for hydraulic pumps.
- 1H 3/4 N s = N Q 1/3
- 2N s √Q = N H 3/4
- 3H 1/4 N s = N √Q
- 4H 3/4 N s = N √Q✓
Correct answer
H 3/4 N s = N √Q
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