Allied & ICAR Exam Bank • ALLIED_0357 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Fluid Mechanics in SWCE

Subtopic: Fluid Mechanics in SWCE

Question Statement:

The discharge over a sharp-crested rectangular weir without end contractions is proportional to crest head $H$ as:

Options:

  • (A) $H^{3/2}$
  • (B) $H^{5/2}$
  • (C) $H^{1/2}$
  • (D) $H^2$

Answer Key:

A

Step-by-Step Solution & Explanation

For a rectangular weir, $Q = \frac{2}{3} C_d L \sqrt{2g} H^{3/2} \propto H^{3/2}$.
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