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 4 of 29

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Q31.
In the following Newton's viscosity equation, the coefficient (ฮผ) is known as coefficient of

a.

viscosity

b.

absolute viscosity

c.

dynamic viscosity

d.

all the above

Discuss
Answer: (d).all the above
Q32.
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).
Q33.
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
Q34.
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
Q35.
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.
Q36.
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
Q37.
If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.1 kg/cm², the pressure at a depth of 2.5 m, is

a.

1 metre of water

b.

2 metres of water

c.

3 metres of water

d.

3.5 metres of water

Discuss
Answer: (c).3 metres of water
Q38.
A pipe of 0.1 m² cross sectional area suddenly enlarges to 0.3 m² cross-sectional area. If the discharge of the pipe is 0.3 m³ /sec, the head loss is

a.

2/g m of water

b.

g/2 m of water

c.

1g m of water

d.

โˆšg m of water.

Discuss
Answer: (a).2/g m of water
Q39.
Maximum efficiency of transmission of power through a pipe, is

a.

25%

b.

33.3%

c.

50%

d.

66.67%.

Discuss
Answer: (d).66.67%.
Q40.
An ideal flow of a liquid obeys

a.

Continuity equation

b.

Newton's law of viscosity

c.

Newton's second law of motion

d.

dynamic viscosity law,

Discuss
Answer: (a).Continuity equation
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