Hydraulics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydraulics, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Hydraulics 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 Hydraulics mcq questions that explore various aspects of Hydraulics problems. Each MCQ is crafted to challenge your understanding of Hydraulics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Hydraulics MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Hydraulics. 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 Hydraulics knowledge to the test? Let's get started with our carefully curated MCQs!

Hydraulics MCQs | Page 3 of 29

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Q21.
The valve closure is said to be sudden if

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q22.
If Re is the Reynolds's number, the coefficient of friction for laminar flow is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q23.
The length of pipe is L, velocity of flow of a liquid in the pipe is V. If t is the time in second required to close the valve, the head of pressure

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q24.
Kinematic viscosity of liquids by following equation is determined by :

a.

Redwood viscometer

b.

Engler viscometer

c.

Saybolt universal viscometer

d.

None of these

Discuss
Answer: (c).Saybolt universal viscometer
Q25.
A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is

a.

14,137 kgf

b.

5,863 kgf

c.

20,000 kgf

d.

18,000 kgf

Discuss
Answer: (b).5,863 kgf
Q26.
In the following Newton's viscosity equation, the coefficient (ฮผ) is known as coefficient of

a.

viscosity

b.

absolute viscosity

c.

dynamic viscosity

d.

all the above

Discuss
Answer: (d).all the above
Q27.
Pick up the correct statement regarding Borda's mouth piece running full from the following :

a.

Actual velocity at the out let is โˆšgH

b.

Theoretical velocity at the outlet is โˆš2gH

c.

Coefficient of velocity is 1/โˆš2

d.

All the above.

Discuss
Answer: (d).All the above.
Q28.
Differential manometers are used to measure

a.

pressure in water channels, pipes, etc.

b.

difference in pressure at two points

c.

atmospheric pressure

d.

very low pressure.

Discuss
Answer: (b).difference in pressure at two points
Q29.
A tank 4m x 3m x 2m containing an oil of specific gravity 0.83 is moved with an acceleration g/2 m sec². The ratio of the pressures at its bottom when it is moving vertically up and down, is

a.

2

b.

3

c.

1/2

d.

1/3

Discuss
Answer: (b).3
Q30.
Highest dam in India, is

a.

Bhakra dam

b.

Hirakund dam

c.

Nagarjuna Sagar dam

d.

Iddiki dam.

Discuss
Answer: (a).Bhakra dam
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