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.

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Lining of Irrigation Canals MCQs | Page 6 of 6

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Q51.
Which type of lining is adopted when the channels have become stable and no danger of scouring is expected?

a.

Brick lining

b.

Single burnt clay tile lining

c.

In-situ cement concrete lining

d.

Flexible membrane lining in the bed and rigid lining on the sides

Discuss
Answer: (d).Flexible membrane lining in the bed and rigid lining on the sides
Q52.
Which of the following statement is incorrect about Expansive soils?

a.

Expansive soils exhibit shrinkage and swelling properties

b.

They have high compressibility and liquid limits with more than 50

c.

Black cotton soil is the most common expansive soil in India

d.

The lesser the swelling pressure, the more troublesome is the soil

Discuss
Answer: (d).The lesser the swelling pressure, the more troublesome is the soil
Q53.
The larger the thickness of CNS introduced over the expansive soil, the more will be the resulting swelling in soil.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q54.
What is the recommended value of CNS thickness to be used for lining over expansive soil with swelling pressure of 200-300 KN/m²?

a.

75 to 85 cm

b.

90 to 100 cm

c.

105 to 125 cm

d.

> 125 cm

Discuss
Answer: (b).90 to 100 cm
Q55.
Safety ladders are generally provided on ___________

a.

side slopes

b.

bed slopes

c.

anywhere on the canal

d.

both side slopes and bed slopes

Discuss
Answer: (a).side slopes
Q56.
If the free swell index of soil is more than 100, the soil may be expansive.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q57.
Safety ladders are provided in large irrigation canals to ______________

a.

enable the fish to pass from one place to another

b.

enable the cattle to cross the canal

c.

enable the swimmers to get out of the canal

d.

provide safe exit to avoid accidental drowning

Discuss
Answer: (d).provide safe exit to avoid accidental drowning
Q58.
CNS material shall be non-swelling with a minimum of ___________

a.

10 KN/m² of cohesion

b.

15 KN/m² of cohesion

c.

20 KN/m² of cohesion

d.

30 KN/m² of cohesion

Discuss
Answer: (a).10 KN/m² of cohesion
Q59.
Which of the following is incorrect about the identification of CNS material?

a.

The CNS material can be identified by using A-line chart

b.

The permissible deformation of the CNS layer is 20 mm

c.

The swelling pressure should not exceed 10 KN/m²

d.

The soil with liquid limit less than 30% and plastic index less than 15% is considered suitable

Discuss
Answer: (d).The soil with liquid limit less than 30% and plastic index less than 15% is considered suitable
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