Spillways and Spillway Gates MCQs

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

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Spillways and Spillway Gates MCQs | Page 6 of 9

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Q51.
The discharge passing over an ogee spillway per unit length of its apex line is proportional ___________________

a.

H

b.

H²

c.

H^1/2

d.

H^3/2

Discuss
Answer: (d).H^3/2
Q52.
When the crest of an ogee spillway is designed to be in accordance with the lower nappe of a free-falling water jet over a duly ventilated sharp-crested weir then theoretically

a.

The pressure on the spillway crest will be zero at design head only

b.

The pressure on the spillway crest will always be zero

c.

The pressure on the spillway crest will always be negative

d.

The pressure on the spillway crest will be always positive

Discuss
Answer: (a).The pressure on the spillway crest will be zero at design head only
Q53.
When the gated sluices are provided through the body of the dam spillway then the ogee spillway structure shall normally be of Corbel type.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q54.
The velocity of approach has found to be negligible effect upon discharge if ____________

a.

the ratio H/Hd is more than 1.33

b.

the ratio H/Hd is less than 1.33

c.

the ratio H/Hd is equal to zero

d.

the ratio H/Hd is more than 1

Discuss
Answer: (a).the ratio H/Hd is more than 1.33
Q55.
If a flood enters a dam reservoir at F.R.L, the efficiency of its ogee spillway will ______________

a.

increase with the increasing head

b.

reduce with the increasing head

c.

remain constant with the increasing head

d.

vary with the increasing head

Discuss
Answer: (a).increase with the increasing head
Q56.
The downstream apron of the ogee spillway is found to have a negligible effect on the coefficient of discharge when the value of ________________

a.

(Hd + d) / He is less than 1.7

b.

(Hd + d) / He exceeds 1.7

c.

(Hd + d) / He is equal to 1

d.

(Hd + d) / He is less than 1.33

Discuss
Answer: (b).(Hd + d) / He exceeds 1.7
Q57.
When the tail-water depths in the river downstream of a spillway are quite low such that the tail-water curve at all discharges lies below the post jump depth curve, then the energy dissipation can be affected best by ___________________

a.

a roller bucket

b.

a ski-jump bucket

c.

either roller or ski-jump bucket

d.

a sloping apron

Discuss
Answer: (b).a ski-jump bucket
Q58.
The device which does not help in energy dissipation at the bottom of a hydraulic structure over which water spills is ________________

a.

chute block

b.

dentated sill

c.

morning glory

d.

baffle piers

Discuss
Answer: (c).morning glory
Q59.
The formation of hydraulic jump at the foot of a spillway is one of the common methods of energy dissipation because ______________________

a.

it destroys more than 90% of total energy by the turbulence produced in the jump

b.

it reduces the kinetic energy by increasing the depth of flow

c.

its action is not understood

d.

it reduces the kinetic energy by decreasing the depth of flow

Discuss
Answer: (a).it destroys more than 90% of total energy by the turbulence produced in the jump
Q60.
A ski-jump bucket is also known as _____________________

a.

flip bucket

b.

solid roller bucket

c.

slotted roller bucket

d.

flexible bucket

Discuss
Answer: (a).flip bucket
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