Allied & ICAR Exam Bank • ALLIED_0503 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Canal Design and Silt Theories

Subtopic: Canal Design and Silt Theories

Question Statement:

In Lacey's regime theory, the wetted perimeter $P$ of a stable regime channel carrying discharge $Q$ (in $\text{m}^3/\text{s}$) is:

Options:

  • (A) $P = 4.75 \sqrt{Q}$
  • (B) $P = 2.25 \sqrt{Q}$
  • (C) $P = 4.75 Q^{2/3}$
  • (D) $P = 3.8 \sqrt{Q}$

Answer Key:

A

Step-by-Step Solution & Explanation

Lacey derived the regime wetted perimeter equation $P = 4.75 \sqrt{Q}$.
← Previous (ALLIED_0502) Next (ALLIED_0504) →

Practice In Authentic CBT Exam Interface

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

Launch CBT Mock Test