Lining of Irrigation Canals MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Lining of Irrigation Canals, 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 Lining of Irrigation Canals 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 Lining of Irrigation Canals mcq questions that explore various aspects of Lining of Irrigation Canals problems. Each MCQ is crafted to challenge your understanding of Lining of Irrigation Canals 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 Lining of Irrigation Canals MCQs are your pathway to success in mastering this essential Irrigation Engineering topic.

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Lining of Irrigation Canals MCQs | Page 5 of 6

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Q41.
Puddle clay is laid on the subgrade to form a fairly water-tight coating.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q42.
What is the safe limiting velocity for cement concrete lining?

a.

1.5 m/s

b.

2.2 m/s

c.

2.7 m/s

d.

1.8 m/s

Discuss
Answer: (c).2.7 m/s
Q43.
The most economical type of lining is the one which shows ____________

a.

minimum benefit-cost ratio

b.

maximum benefit-cost ratio

c.

zero benefit-cost ratio

d.

benefit-cost ratio = 1

Discuss
Answer: (b).maximum benefit-cost ratio
Q44.
Which of the following guideline is not recommended for the choice of lining when the bed width of the canal is up to 3 m?

a.

Single burnt clay tile lining or brick lining

b.

PCC slab lining

c.

Flexible membrane lining with adequate earth/tile cover

d.

In-situ cement concrete lining in bed as well as on sides

Discuss
Answer: (d).In-situ cement concrete lining in bed as well as on sides
Q45.
Which of the following is not a cause for the hydrostatic pressure on the lining?

a.

Seeping of the rainwater in the backfill

b.

When the water table remains below the canal bed

c.

The backfill is of low drainage

d.

The backfill is of high permeability (i.e. > 3 cm/sec)

Discuss
Answer: (d).The backfill is of high permeability (i.e. > 3 cm/sec)
Q46.
Drainage relief pockets are provided ___________

a.

at isolated locations in the bed as well as sides of the lined canal

b.

in the bed of the canal

c.

in the sides of the canal

d.

anywhere in the canal

Discuss
Answer: (a).at isolated locations in the bed as well as sides of the lined canal
Q47.
The permeability of lining is also governed by the depth of water in the canal and type of subgrade soil.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q48.
Pressure relief valves may help in ___________

a.

releasing the hydrostatic pressure

b.

holding the hydrostatic pressure

c.

increasing the hydrostatic pressure

d.

may increase or decrease the hydrostatic pressure

Discuss
Answer: (a).releasing the hydrostatic pressure
Q49.
Pipe drains run _______________

a.

longitudinally on the bed and transverse to the length of canal on the side slopes

b.

longitudinally to the length of the canal on the side slopes and transverse to the bed

c.

longitudinally to the length of the canal

d.

transverse to the bed

Discuss
Answer: (a).longitudinally on the bed and transverse to the length of canal on the side slopes
Q50.
Which of the following statement is wrong about the requirement of good lining?

a.

The lining should be able to withstand the differential sub-soil pressure

b.

Brick lining, concrete lining or precast slab lining can be easily repaired as compared to cast-in-situ concrete lining

c.

The hydraulic efficiency generally reduces with time

d.

Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining

Discuss
Answer: (d).Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining
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