Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Mechanics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fluid Mechanics 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 Fluid Mechanics mcq questions that explore various aspects of Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fluid Mechanics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fluid Mechanics. 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 Fluid Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Mechanics MCQs | Page 21 of 77

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Q201.
Self-priming centrifugal pump can be used for

a.

booster service.

b.

pumping liquid fertilisers (e.g. liquid NHโ‚ƒ).

c.

pumping industrial wastes.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
Q202.
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

a.

pipe length

b.

fluid velocity in the pipe

c.

time taken to close the valve

d.

all (a), (b) and (c)

Discuss
Answer: (d).all (a), (b) and (c)
Q203.
Bernoull's equation does not apply to the functioning of a/an

a.

venturimeter

b.

orificem

c.

pitot tube

d.

none of these

Discuss
Answer: (d).none of these
Q204.
What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'ฮ”p' with average velocity 'Vโ‚แตฅ'?

a.

D ฮ”p/8L

b.

D ฮ”p/4L

c.

8 . Vโ‚แตฅ/D

d.

4 . Vโ‚แตฅ/D

Discuss
Answer: (c).8 . Vโ‚แตฅ/D
Q205.
Pascal's law is valid, only when the fluid is

a.

frictionless and at rest.

b.

at rest.

c.

at rest and when the frictionless fluid is in motion.

d.

none of these.

Discuss
Answer: (b).at rest.
Q206.
In a/an __________ , the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure.

a.

rotameter

b.

pitot tube

c.

venturimeter

d.

flow nozzle

Discuss
Answer: (b).pitot tube
Q207.
Speed of sound in an ideal gas depends on its

a.

temperature

b.

pressure

c.

specific volume

d.

none of these

Discuss
Answer: (a).temperature
Q208.
A centrifugal pump designed for handling water (ฮผ = 1 cp) will deliver __________ when pumping a thicker oil (ฮผ = 30 cp).

a.

less head & capacity

b.

more head

c.

more capacity

d.

less head & more capacity

Discuss
Answer: (a).less head & capacity
Q209.
If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to

a.

x

b.

x/2

c.

x/3

d.

2x/3

Discuss
Answer: (a).x
Q210.
The rate of shear versus the shear stress curves are time dependent for __________ fluid.

a.

thixotropic

b.

rheopectic

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
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