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 7 of 9

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Q61.
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
Q62.
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
Q63.
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
Q64.
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
Q65.
When the TWC lies below the JHC at all discharges, the problem can be solved by which of the following provisions?

i. Constructing a sloping apron above the river bed
ii. Provision of roller bucket type of energy dissipator
iii. Provision of a ski-jump bucket
iv. A sloping apron below the river bed
v. Construction of a subsidiary dam
vi. A sloping apron partly above and partly below the river bed

a.

i, iii and v

b.

i, ii and vi

c.

iii, iv and v

d.

i, iii, iv and v

Discuss
Answer: (c).iii, iv and v
Q66.
A troublesome and oscillating hydraulic jump is normally met in cases of _____________

a.

weirs and barrages

b.

overflow spillways of dams

c.

weirs

d.

large spillways

Discuss
Answer: (a).weirs and barrages
Q67.
A very steady and stable hydraulic jump is usually formed in the flows involving the approaching Froude number in the range of _____________________

a.

less than 2.5

b.

2.5 to 4.5

c.

4.5 to 9.0

d.

more than 9.0

Discuss
Answer: (c).4.5 to 9.0
Q68.
Standard USBR stilling basin-II is useful for energy dissipation at the bottom of the overflow structure, if the approaching Froude number is ________________

a.

less than 4.5

b.

more than 4.5

c.

less than 2.5

d.

more than 2.5

Discuss
Answer: (b).more than 4.5
Q69.
When the Froude number is in the range of 2.5 to 4.5, the jump is ____________________

a.

weak and energy loss is low

b.

troublesome and oscillating

c.

steady jump

d.

strong jump

Discuss
Answer: (b).troublesome and oscillating
Q70.
Which of the following stilling basin is applicable to only rectangular cross-sections?

a.

U.S.B.R stilling basin-II

b.

U.S.B.R stilling basin-IV

c.

U.S.B.R stilling basin-I

d.

U.S.B.R stilling basin-III

Discuss
Answer: (b).U.S.B.R stilling basin-IV
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