Allied & ICAR Exam Bank • ALLIED_0509 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Canal Design and Silt Theories

Subtopic: Canal Design and Silt Theories

Question Statement:

The major difference between Kennedy's theory and Lacey's theory is that:

Options:

  • (A) Kennedy considered silt-supporting eddies generated only from the channel bed, whereas Lacey considered eddies generated from the entire wetted perimeter (bed and sides)
  • (B) Kennedy used Manning's formula and Lacey did not use any formula
  • (C) Lacey assumed rigid boundary channels
  • (D) Kennedy neglected gravity

Answer Key:

A

Step-by-Step Solution & Explanation

Lacey recognized that turbulent eddies originate normal to all boundaries across the perimeter, giving a true semi-elliptical regime shape.
← Previous (ALLIED_0508) Next (ALLIED_0510) →

Practice In Authentic CBT Exam Interface

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

Launch CBT Mock Test