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 3 of 9

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Q21.
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
Q22.
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
Q23.
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
Q24.
What is the value of the pier abutment coefficient for pointed nose piers?

a.

0.1

b.

0.02

c.

0.01

d.

0.0

Discuss
Answer: (d).0.0
Q25.
What is the value of abutment contraction coefficient for square abutment with headwall perpendicular to the direction of flow?

a.

0.2

b.

0.1

c.

0.02

d.

0.01

Discuss
Answer: (a).0.2
Q26.
What is the assumption that is taken during the entire design of an overflow spillway?

a.

The upper and lower nappe is subjected to negative pressures

b.

The upper and lower nappe is subjected to full atmospheric pressure

c.

The upper and lower nappe is subjected to zero atmospheric pressure

d.

The upper and lower nappe is subjected to both positive and negative pressure

Discuss
Answer: (b).The upper and lower nappe is subjected to full atmospheric pressure
Q27.
The greater is the divergence from the streamline flow, greater is the contraction coefficient.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q28.
Calculate the effective length of the spillway which consists of 6 spans having a clear width of 10 m each. The thickness of each pier may be taken as 2.5 m and the total design head on the crest including velocity head is 16.3 m. Assuming 90° cut water nose piers and rounded abutments.

a.

55 m

b.

60 m

c.

65 m

d.

75 m

Discuss
Answer: (a).55 m
Q29.
Which of the following is the simplest type of spillway which can be provided independently and at low costs?

a.

Ogee spillway

b.

Trough spillway

c.

Siphon spillway

d.

Saddle spillway

Discuss
Answer: (b).Trough spillway
Q30.
If the spillway is constructed in continuation to the dam at one end, it may be called as ________

a.

saddle weir

b.

flank weir

c.

waste weir

d.

temporary weir

Discuss
Answer: (b).flank weir
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