Allied & ICAR Exam Bank • ALLIED_0561 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Centrifugal Pumps and Cavitation

Subtopic: Centrifugal Pumps and Cavitation

Question Statement:

The specific speed $N_s$ of an agricultural centrifugal pump is defined as:

Options:

  • (A) $N_s = \frac{N \sqrt{Q}}{H^{3/4}}$
  • (B) $N_s = \frac{N Q^2}{H^{1/2}}$
  • (C) $N_s = \frac{N \sqrt{H}}{Q^{3/4}}$
  • (D) $N_s = \frac{N Q}{H^{3/2}}$

Answer Key:

A

Step-by-Step Solution & Explanation

Specific speed in pump engineering is $N_s = \frac{N \sqrt{Q}}{H^{3/4}}$, defining impeller geometry independent of physical size.
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