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 (μ) is known as coefficient of

a.

viscosity

b.

absolute viscosity

c.

dynamic viscosity

d.

all the above

Discuss
Answer: (d).all the above
Q27.
Which one of the following equation is applicable to unsteady flow in open channels :

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q28.
Dimensions of the dynamic viscosity (μ) are

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q29.
For pipes not running full, the hydraulic mean depth is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q30.
The following equation for the viscosity, is suggested

a.

Bernoulli

b.

Newton

c.

Chezy

d.

Bezin

Discuss
Answer: (b).Newton
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