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 9 of 29

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Q81.
For a most economical rectangular channel, the hydraulic mean depth, is equal to

a.

the depth of flow

b.

half the depth of flow

c.

one-third depth of flow

d.

None of these.

Discuss
Answer: (b).half the depth of flow
Q82.
In a venturimeter, the divergent cone is kept

a.

shorter than convergent cone

b.

equal to covergent cone

c.

longer than convergent cone

d.

none of these.

Discuss
Answer: (c).longer than convergent cone
Q83.
Specific weight of sea water is more than that of pure water because of

a.

dissolved air

b.

dissolved salts

c.

suspended matter

d.

all the above.

Discuss
Answer: (d).all the above.
Q84.
Total pressure on the top of a closed cylindrical vessesl completely filled with liquid, is directly proportional to

a.

radius

b.

(radius)²

c.

(radius)³

d.

(radius)โด

Discuss
Answer: (d).(radius)โด
Q85.
A short tube mouthpiece will not run full at its outlet if the head under which the orifice works, is

a.

less than 12.2 m of the water

b.

more than 12.2 m of the water

c.

equal of 12.2 m of water

d.

none of these.

Discuss
Answer: (b).more than 12.2 m of the water
Q86.
Hydrostatic pressure on a dam depends upon its

a.

length

b.

depth

c.

shape

d.

both (b) and (c).

Discuss
Answer: (d).both (b) and (c).
Q87.
A pitot tube is used to measure

a.

pressure

b.

difference in pressure

c.

velocity of flow

d.

none of these.

Discuss
Answer: (c).velocity of flow
Q88.
The thickness of a sharp crested weir is kept less than

a.

one-third of the height of water on the sill

b.

one-half of the height of water on the sill

c.

one-fourth of the height of water on the sill

d.

two-third of the height of water on the sill

Discuss
Answer: (b).one-half of the height of water on the sill
Q89.
The property of steam function ฯˆ is :

a.

ฯˆ is constant everwhere on any stream line

b.

the flow around any path in the fluid is zero for continuous flow

c.

the rate of change of ฯˆ with distance in an arbitrary direction, is proportional to the component of velocity normal to that direction

d.

all the above.

Discuss
Answer: (d).all the above.
Q90.
The maximum vacuum created at the summit of a syphon is

a.

2.7 m of water

b.

7.4 m of water

c.

5.5 m of water

d.

none.

Discuss
Answer: (b).7.4 m of water
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