Allied & ICAR Exam Bank • ALLIED_1203 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Canal Design and Silt Theories

Subtopic: Lacey's Regime Theory

Question Statement:

According to Lacey's regime theory for alluvium canals, an irrigation canal designed for a regime discharge $Q = 64\text{ m}^3/\text{s}$ has a wetted perimeter $P = 4.75 \sqrt{Q}$. The wetted perimeter in meters is:

Answer Key:

38

Step-by-Step Solution & Explanation

$P = 4.75 \sqrt{64} = 4.75 \times 8 = 38.0\text{ m}$.
← Previous (ALLIED_1202) Next (ALLIED_1204) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test