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 energy dissipation at the toe of the spillway is affected basically by the use of hydraulic jump in _______________________

a.

roller bucket

b.

a ski-jump bucket

c.

a sloping apron below the downstream river bed

d.

both roller and ski-jump bucket

Discuss
Answer: (c).a sloping apron below the downstream river bed
Q52.
The most ideal condition for energy dissipation in the design of spillways is the one when the tail-water rating curve coincides with the jump rating curve at all discharge.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q53.
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
Q54.
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
Q55.
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
Q56.
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
Q57.
The percentage of energy dissipation in a hydraulic jump increases with the increase in the Froude number.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q58.
Which of the following stilling basin help in stabilizing the flow and improve the jump performance?

a.

dentated sills

b.

chute blocks

c.

baffle piers

d.

friction blocks

Discuss
Answer: (b).chute blocks
Q59.
What is the expected solution for the case when the T.W.C is lying above the J.H.C curve at all discharges?

a.

By providing a simple concrete apron of length 5(Y₁ – Y₂)

b.

By providing a sloping apron above the river bed

c.

By providing a sloping apron below the river bed

d.

Provision of a ski-jump bucket

Discuss
Answer: (b).By providing a sloping apron above the river bed
Q60.
A sloping apron is provided partly above the river bed and partly below the river bed in case of ____________________________

a.

when TWC coincides with the JHC at all discharges

b.

when TWC lies above the JHC at all discharges

c.

when TWC lies below the JHC at all discharges

d.

when TWC lies above the JHC at low discharges and below the JHC at high discharges

Discuss
Answer: (d).when TWC lies above the JHC at low discharges and below the JHC at high discharges
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