Allied & ICAR Exam Bank • ALLIED_1217 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Canal Design and Silt Theories

Subtopic: Kennedy's Silt Theory

Question Statement:

According to Kennedy's silt theory, the critical nonsilting nonscouring velocity in an earthen channel is $V_0 = 0.55 m D^{0.64}$. For a critical velocity ratio $m = 1.0$ and depth of water $D = 1.0\text{ m}$, the critical velocity $V_0$ in m/s is:

Answer Key:

0.55

Step-by-Step Solution & Explanation

$V_0 = 0.55 (1.0) (1.0)^{0.64} = 0.55\text{ m/s}$.
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