At a constant speed of the centrifugal pump, it‟s _____________ the impeller diameter?
Correct answer: D. All A., B. and C.
- A. Capacity varies directly with
- B. Head varies as the square of
- C. Horsepower varies as the cube of
- D. All A., B. and C.
Explanation
The centrifugal-pump affinity laws for constant speed give Q ∝ D, H ∝ D², and power ∝ D³, where D is impeller diameter. Therefore all three stated relationships are valid.
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