Canal Irrigation System and Canal Falls MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Canal Irrigation System and Canal Falls, a fundamental topic in the field of Irrigation Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Canal Irrigation System and Canal Falls MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Canal Irrigation System and Canal Falls mcq questions that explore various aspects of Canal Irrigation System and Canal Falls problems. Each MCQ is crafted to challenge your understanding of Canal Irrigation System and Canal Falls principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Irrigation Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Canal Irrigation System and Canal Falls MCQs are your pathway to success in mastering this essential Irrigation Engineering topic.

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Canal Irrigation System and Canal Falls MCQs | Page 9 of 16

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Q81.

The velocity of flow in a channel should not more or less, but instead it should be adequate.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q82.
What is the effect of scouring in channels?

a.

The Channel Section gets reduced

b.

Reduces Discharge Capacity

c.

Improper Working of Channel

d.

Breaching of Canal Banks

Discuss
Answer: (d).Breaching of Canal Banks
Q83.
What is the effect of silting in channels?

a.

Reduced Discharge Capacity of Channel

b.

Causes Loss of Command

c.

Breaching of Canal Banks

d.

Failure of Irrigation Structures

Discuss
Answer: (a).Reduced Discharge Capacity of Channel
Q84.
Which type of state is achievable in artificial channels but not in rivers?

a.

Turbulent State

b.

Laminar State

c.

Regime State

d.

Uniform State

Discuss
Answer: (c).Regime State
Q85.
On what basis for designing the regime state is obtained?

a.

Silt and Velocity of Flow

b.

Silt

c.

Velocity

d.

Depth of Channel

Discuss
Answer: (a).Silt and Velocity of Flow
Q86.
What vital factor is not considered in regime theories during the design of regime channels?

a.

Velocity of Flow in the Channel

b.

Type of Flow in the Channel

c.

Quantity of Sediment Entering a channel

d.

Area in which the Channel flows

Discuss
Answer: (c).Quantity of Sediment Entering a channel
Q87.
According to Kennedy the silting action in channels is due to?

a.

Generation of Eddies

b.

Slope of the Bed

c.

Area of Channel

d.

Type of Flow in the Channel

Discuss
Answer: (a).Generation of Eddies
Q88.
Based on his research what factor is given by Kennedy for free silting and scouring actions in a channel?

a.

Critical Velocity (V₀)

b.

Bed Slope of Channel

c.

Hydraulic Mean Depth

d.

Rugosity Coefficient

Discuss
Answer: (a).Critical Velocity (V₀)
Q89.
Given to design the irrigation channel to carry 80 cumecs of discharge. The channel slope is 1 in 3000. The critical velocity ratio is 1.3. Take rugosity coefficient as 0.021.

a.

Depth = 3 m, Base width = 15 m

b.

Depth = 3.5 m, Base width = 15.5 m

c.

Depth = 3.3 m, Base width = 15.2 m

d.

Depth = 3.2 m, Base width = 15.1 m

Discuss
Answer: (d).Depth = 3.2 m, Base width = 15.1 m
Q90.
Design a regime channel for a discharge of 90 cumecs and silt factor is 1.3 use Lacey’s Theory.

a.

Depth = 2.2 m, Base width = 40.5 m, Slope = 1/4670

b.

Depth = 2.12 m, Base width = 40.42 m, Slope = 1/4675

c.

Depth = 2.135 m, Base width = 40.3 m, Slope = 1/4676

d.

Depth = 2.123 m, Base width = 40.1 m, Slope = 1/4672

Discuss
Answer: (c).Depth = 2.135 m, Base width = 40.3 m, Slope = 1/4676
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