Rivers and Dam Reservoirs MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Rivers and Dam Reservoirs, 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 Rivers and Dam Reservoirs 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 Rivers and Dam Reservoirs mcq questions that explore various aspects of Rivers and Dam Reservoirs problems. Each MCQ is crafted to challenge your understanding of Rivers and Dam Reservoirs 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 Rivers and Dam Reservoirs 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 Rivers and Dam Reservoirs. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Rivers and Dam Reservoirs knowledge to the test? Let's get started with our carefully curated MCQs!

Rivers and Dam Reservoirs MCQs | Page 14 of 19

Discover more Topics under Irrigation Engineering

Q131.
Which of the following dam is situated in the seismologically inactive zone in Peninsular India?

a.

Koyna dam

b.

Hirakud dam

c.

Tehri dam

d.

Idukki dam

Discuss
Answer: (a).Koyna dam
Q132.
Which of the following measure does not prevent or reduce the intensity of the earthquake?

a.

Filling the reservoir up to a limited safe level

b.

Draining out water from weaker adjoining rocks

c.

Active exploration of the dam site for the absence of inactive faults before selecting the same

d.

Increasing the pore pressure

Discuss
Answer: (d).Increasing the pore pressure
Q133.
Which of the following guideline is incorrect for the selection of a suitable site for a reservoir?

a.

The geological formation should be such that it entails minimum leakage

b.

The cost of the dam is a controlling factor

c.

Too much silt-laden tributaries should be avoided as far as possible

d.

The reservoir basin should have a shallow wide opening in the valley

Discuss
Answer: (d).The reservoir basin should have a shallow wide opening in the valley
Q134.
The bar screens used to cover the dam outlets to prevent entry of debris, or ice into the spillway conduits are called __________________

a.

gate controlled ports

b.

projecting collars

c.

trash racks

d.

intakes

Discuss
Answer: (c).trash racks
Q135.
Projecting collars are provided on sides of a rectangular tunnel of length L made through an earthen dam to increase the seepage path. Their projection length (X) and numbers (N) are decided so as to provide increased seepage path equal to 2NX where 2NX should generally be ______________________

a.

greater than L/4

b.

greater than L/3

c.

greater than L/2

d.

greater than L

Discuss
Answer: (a).greater than L/4
Q136.
The outlet provided in a dam body to release water for the downstream water demand is known as ______________________

a.

spillway

b.

sluiceway

c.

under-sluice

d.

waterway

Discuss
Answer: (b).sluiceway
Q137.
A 2 m diameter sluiceway at RL 300 m is provided through a concrete overflow dam section to release water to the downstream where tail water level is not more than 275 m. The discharge through this outlet when the water level in the reservoir is at FRL of 330 m is of the order of_________________

a.

20 cumecs

b.

40 cumecs

c.

50 cumecs

d.

80 cumecs

Discuss
Answer: (c).50 cumecs
Q138.
A 4 m diameter tunnel has been constructed through an earthen dam with a bell mouth entry. The water levels on the U/s and D/s sides of the dam are at RL 226 m and 210 m respectively. What will be the discharge through this outlet?

a.

64 cumecs

b.

104 cumecs

c.

165 cumecs

d.

216 cumecs

Discuss
Answer: (c).165 cumecs
Q139.
Which of the following entrance of the sluiceway is most superior?

a.

A square-edged entrance

b.

A Bell-mouthed entrance

c.

A rectangular entrance

d.

A circular entrance

Discuss
Answer: (b).A Bell-mouthed entrance
Q140.
What is the correct Douma’s equation for rectangular tunnels or conduits?

a.

X² + 10.4 Y² = d²

b.

4X² + 10.4 Y² = d²

c.

4X² + 44.4 Y² = d²

d.

X² – 10.4 Y² = d²

Discuss
Answer: (a).X² + 10.4 Y² = d²
Page 14 of 19