Allied & ICAR Exam Bank • ALLIED_0507 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Canal Design and Silt Theories

Subtopic: Canal Design and Silt Theories

Question Statement:

Kennedy's critical velocity formula for non-silting and non-scouring earthen channels is:

Options:

  • (A) $v_0 = 0.55 m y^{0.64}$
  • (B) $v_0 = 0.55 m y^{0.5}$
  • (C) $v_0 = 1.76 m y^{1/6}$
  • (D) $v_0 = m \sqrt{g y}$

Answer Key:

A

Step-by-Step Solution & Explanation

Kennedy's empirical equation is $v_0 = 0.55 m y^{0.64}$ in SI units (where $y$ is water depth and $m$ is Critical Velocity Ratio).
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