Cross Drainage Work MCQs

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

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Cross Drainage Work. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Cross Drainage Work MCQs | Page 3 of 5

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Q21.
The maximum permissible reduction in the waterway from Lacey’s perimeter is _______

a.

15%

b.

20%

c.

25%

d.

30%

Discuss
Answer: (b).20%
Q22.
The permissible velocity through the barrels is generally limited to _____________

a.

1.5 to 2 m/sec

b.

2 to 3 m/sec

c.

2.5 to 3 m/sec

d.

1 to 2 m/sec

Discuss
Answer: (b).2 to 3 m/sec
Q23.
Which of the following method is applicable for the design of channel transition when the water depths of the flumed and unflumed section are the same or maybe different?

a.

Mitra’s method of design of transitions

b.

Chaturvedi’s method of design of transitions

c.

Hind’s method of design of transitions

d.

The general method of design of transitions

Discuss
Answer: (c).Hind’s method of design of transitions
Q24.
In a siphon aqueduct, the worst condition of uplift on the floor occurs when ________

a.

the canal is full and the drainage empty with the water table at drainage bed

b.

the canal and drainage are flowing full

c.

the canal is empty and the drainage full with the water table at drainage bed

d.

the canal is full and the drainage empty with water table below the floor

Discuss
Answer: (c).the canal is empty and the drainage full with the water table at drainage bed
Q25.
To reduce the cost of the CD works we resort to _____

a.

fluming

b.

blocking of drain

c.

cut-off

d.

lifting of canal water

Discuss
Answer: (a).fluming
Q26.
The greater is the fluming, the greater is the length of upstream and downstream transition wings.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q27.
Which of the following wings protect the earthen slopes of the canal and also guide the drainage water?

a.

Canal wings

b.

Land wings

c.

River wings

d.

Side wings

Discuss
Answer: (c).River wings
Q28.
The head loss through a siphon barrel is usually given by Unwin’s formula by neglecting velocity of approach as HL = [1 + F₁ + F₂. L/R] V²/2g, where F₁ and F₂ respectively represent the coefficient of head losses due to?

a.

Barrel friction and entry

b.

Entry and barrel friction

c.

Barrel friction and exit

d.

Exit and barrel friction

Discuss
Answer: (b).Entry and barrel friction
Q29.
The floor of a siphon aqueduct needs to be designed for conditions when?

i. The canal and drainage are flowing full
ii. The canal is full and there is no drainage discharge
iii. The canal is empty and drainage discharge is full

a.

i only

b.

ii only

c.

i and ii

d.

ii and iii

Discuss
Answer: (d).ii and iii
Q30.
A siphon aqueduct is constructed at a canal crossing site where drainage HFL was 212.2 m by allowing an afflux of 0.4 m at high flood discharge. At this site, the water level downstream of the crossing at the same high flood will be _________

a.

212.2 m

b.

212.6 m

c.

211.8 m

d.

It cannot be predicted

Discuss
Answer: (a).212.2 m
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