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 17 of 29

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Q161.
The flow in a channel is said to be non-uniform, if

a.

free water surface of an open channel is not parallel to the bed of channel

b.

head needed to overcome frictional reistance is less than the drop in elevation of channel bed

c.

head needed to overcome frictional resistance is more than the drop in elevation of channel bed

d.

all the above.

Discuss
Answer: (d).all the above.
Q162.
In steady flow, which one of the following changes with time

a.

velocity

b.

pressure

c.

density

d.

none of these.

Discuss
Answer: (d).none of these.
Q163.
The notch angle for maximum discharge over a triangular notch, is

a.

30°

b.

60°

c.

90°

d.

120°

Discuss
Answer: (c).90°
Q164.
In an inclined pipe, the pressure difference at its two ends is due to

a.

sudden head drop at inlet

b.

exit head drop

c.

frictional loss head

d.

all the above.

Discuss
Answer: (d).all the above.
Q165.
Weber number is the ratio of inertia force to

a.

surface tension

b.

gravitational force

c.

elasticity

d.

viscosity.

Discuss
Answer: (a).surface tension
Q166.
Though angle of deviation of liquid is more in internal mouth piece, the contraction of the jet, is

a.

more in the internal mouth piece

b.

less in the internal mouth piece

c.

equal to external mouth piece

d.

none of these.

Discuss
Answer: (a).more in the internal mouth piece
Q167.
For a most economical rectangular channel, the width of the channel must be

a.

equal to depth of flow

b.

twice the depth of flow

c.

half the depth of flow

d.

None of these.

Discuss
Answer: (b).twice the depth of flow
Q168.
The hydrostatic force acts through

a.

centre of pressure

b.

centre of top edge

c.

centre of bottom edge

d.

metacentre.

Discuss
Answer: (a).centre of pressure
Q169.
In an inclined position, a venturimeter records

a.

more reading

b.

less reading

c.

same reading

d.

none of these.

Discuss
Answer: (c).same reading
Q170.
If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is

a.

H/2

b.

H/3

c.

2H/3

d.

H/5

Discuss
Answer: (a).H/2
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