The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec?
Correct answer: B. 12.4
- A. 1.8
- B. 12.4
- C. 186.2
- D. 736.4
Explanation
Peripheral velocity is u = πDN/60. Substituting D = 0.25 m and N = 950 rpm gives u = π(0.25)(950)/60 ≈ 12.4 m/s.
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