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 11 of 29

Discover more Topics under Civil Engineering

Q101.
The magnitude of water hammer in a pipe depends upon

a.

speed at which value is closed

b.

length of the pipe line

c.

elastic properties of the pipe material

d.

all the above.

Discuss
Answer: (d).all the above.
Q102.
If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be

a.

laminar

b.

turbulent flow

c.

uniform flow

d.

non-uniform flow.

Discuss
Answer: (b).turbulent flow
Q103.
The rise of the liquid along the walls of a revolving cylinder above the initial level, is

a.

greater than the depression of the liquid at the axis of rotation

b.

lesser than the depression of the liquid at the axis of rotation

c.

the same as the depression of the liquid at the axis of rotation

d.

none of these.

Discuss
Answer: (c).the same as the depression of the liquid at the axis of rotation
Q104.
Fluids change the volume under external presssure due to

a.

plasticity

b.

viscosity

c.

compressibility

d.

none of these.

Discuss
Answer: (c).compressibility
Q105.
For maximum horse power of a nozzle, the head supplied must be equal to

a.

head loss in the pipe due to friction

b.

twice the head loss in the pipe due to friction

c.

thrice the head loss in the pipe due to friction

d.

four times the head loss in the pipe due to friction.

Discuss
Answer: (c).thrice the head loss in the pipe due to friction
Q106.
The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (d).4
Q107.
Flow in pipes is turbulent if Reynold number is

a.

less than 2100

b.

more than 3000

c.

between 2100 and 3000

d.

none of these.

Discuss
Answer: (b).more than 3000
Q108.
Back water curve is caused if

a.

friction head loss is more than the bed slope

b.

pressure is due to weir in the channel

c.

there is an increase in width of the channel

d.

none of these.

Discuss
Answer: (b).pressure is due to weir in the channel
Q109.
Power transmitted through a pipe is maximum when friction head loss, is

a.

one-half of the total head supplied

b.

one-third of the total head supplied

c.

one-fouth of the total head supplied

d.

equal to the total head supplied.

Discuss
Answer: (b).one-third of the total head supplied
Q110.
To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than

a.

2.4 m

b.

6.4 m

c.

10.0 m

d.

5.0 m.

Discuss
Answer: (b).6.4 m
Page 11 of 29