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 25 of 29

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Q241.
The line joining the points to which the liquid rises in vertical piezometer tubes fitted at different cross-sections of a conduit, is known as

a.

hydraulic gradient

b.

piezometric line

c.

pressure grade line

d.

all the above.

Discuss
Answer: (d).all the above.
Q242.
Practical fluids possess

a.

viscosity

b.

surface tension

c.

compressibility

d.

all the above.

Discuss
Answer: (d).all the above.
Q243.
The depth of the centre of pressure on a vertical rectangular gate (4 m wide, 3 m high) with water upto top surface, is

a.

1.0 m

b.

1.5 m

c.

2.0 m

d.

2.5 m.

Discuss
Answer: (c).2.0 m
Q244.
The differential equation dp/ฯ + gdz + vdv = 0 for a fluid motion is suggested by

a.

Bernoulli

b.

Cauchy-Riemann

c.

Laplace

d.

Leonard Euler.

Discuss
Answer: (d).Leonard Euler.
Q245.
An open container filled with water is moved vertically downward with a uniform linear acceleration. The pressure at its bottom will be

a.

greater than static pressure

b.

equal to static pressure

c.

lesser than static pressure

d.

none of these.

Discuss
Answer: (c).lesser than static pressure
Q246.
For uniform flow in canals

a.

there is a balance between the frictional loss and drop in elevation of the channel

b.

bed and free water surfaces of a channel are parallel to each other

c.

bed of channel represents the hydraulic gradient

d.

all the above.

Discuss
Answer: (d).all the above.
Q247.
If H is height of the liquid above the sill, the effect of end contractions, according to Francis formula, is

a.

0.1 H

b.

0.2 H

c.

0.3 H

d.

0.4 H

Discuss
Answer: (a).0.1 H
Q248.
Pick up the correct statement from the following :

a.

For maximum velocity of flow, the depth of water in the circular channel must be 0.81 times the diameter of the channel

b.

For maximum velocity, the hydraulic mean depth must be 0.3 times the diameter of circular channel

c.

For maximum discharge the depth of flow must be 0.95 times the diameter of circular channel

d.

All the above.

Discuss
Answer: (d).All the above.
Q249.
The pressure less than atmospheric , pressure, is known

a.

suction pressure

b.

vacuum pressure

c.

negative gauge pressure

d.

all the above.

Discuss
Answer: (d).all the above.
Q250.
A rise or fall of liquid in a glass tube of a very small diameter when dipped is

a.

directly proportional to the force per unit length of periphery

b.

direcly proportional to the sine of the angle of contact

c.

directly proportional to the specific weight of liquid

d.

inversely proportional to the diameter of the glass tube.

Discuss
Answer: (c).directly proportional to the specific weight of liquid
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