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 5 of 29

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Q41.
Reynold number is the ratio of initial force and

a.

viscosity

b.

elasticity

c.

gravitational force

d.

surface tension.

Discuss
Answer: (a).viscosity
Q42.
The horizontal component of the force on a curved surface is equal to

a.

weight of liquid vertically below the curved surface

b.

force on a vetical projection of the curved surface

c.

product of pressure at its centroid and the area

d.

weight of liquid retained by the curved area.

Discuss
Answer: (b).force on a vetical projection of the curved surface
Q43.
The radius of gyration of the water line of a floating ship is 4 m and its metacentric height is 72.5 cm. The period of oscillation of the ship, is

a.

ฯ€

b.

2ฯ€

c.

3ฯ€

d.

4ฯ€

Discuss
Answer: (c).3ฯ€
Q44.
Most economical section of a circular channel for maximum discharge

a.

depth of water = 0.95 diameter of circular section

b.

hydraulic mean depth = 0.286 diameter of circular section

c.

wetted perimeter = 2.6 diameter of circular section

d.

all the above.

Discuss
Answer: (d).all the above.
Q45.
Unit of kinematic viscosity is

a.

m²/sec

b.

Newton sec/m²

c.

Newton sec/m³

d.

Kg sec/m².

Discuss
Answer: (a).m²/sec
Q46.
The ratio of maximum velocity to average velocity of viscous fluid through a circular pipe is

a.

0.5

b.

0.75

c.

1.25

d.

2.00

Discuss
Answer: (d).2.00
Q47.
The shear stress distribution in viscous fluid through a circular pipe is :

a.

maximum at the centre

b.

maximum at the inside of surface

c.

same throughout the section

d.

none of these.

Discuss
Answer: (c).same throughout the section
Q48.
The side slope of Cipolletti weir is generally kept

a.

1 to 4

b.

1 to 3

c.

1 to 2

d.

1 : 5

Discuss
Answer: (a).1 to 4
Q49.
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
Q50.
Dimensions of the dynamic viscosity (ฮผ) are

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
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