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 6 of 77

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Q51.
Brownian movement is prominent in the particle size range of __________ microns in case of settling of a particle in a fluid.

a.

2 to 3

b.

0.01 to 0.10

c.

200 to 300

d.

100 to 1000

Discuss
Answer: (a).2 to 3
Q52.
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10โปโถ m²/s).

a.

24000

b.

24

c.

0.24

d.

0.44

Discuss
Answer: (d).0.44
Q53.
For Laminar flow through a packed bed, the pressure drop is proportional to (Vโ‚› is the superficial liquid velocity and Dโ‚š is the particle diameter)

a.

Vโ‚›/Dโ‚š²

b.

Vโ‚›²/Dโ‚š²

c.

Vโ‚›²/Dโ‚š³

d.

Vโ‚›/Dโ‚š³

Discuss
Answer: (a).Vโ‚›/Dโ‚š²
Q54.
The maximum delivery pressure of compressors can be upto __________ atmospheres.

a.

10

b.

100

c.

250

d.

1000

Discuss
Answer: (d).1000
Q55.
Dimension of surface tension is(where, F = force, L = length)

a.

FLโป¹

b.

Fโป¹ . L

c.

F.Lโป²

d.

Fโป² . L

Discuss
Answer: (a).FLโป¹
Q56.
Which of the following is not a dimension-less parameter ?

a.

Euler number

b.

Specific gravity

c.

Fanning friction factor

d.

None of these

Discuss
Answer: (d).None of these
Q57.
Various efficiencies of a centrifugal pump are related as (where, ฮทโ‚˜ = mechanical efficiency ฮทแตฅ = volumetric efficiency. ฮทโ‚˜โ‚ = manometric efficiency ฮทโ‚’ = overall efficiency)

a.

ฮทโ‚˜โ‚ x ฮทโ‚˜ x ฮทแตฅ = ฮทโ‚’

b.

ฮทโ‚˜ = ฮทแตฅ . ฮทโ‚˜โ‚

c.

ฮทโ‚˜โ‚ = ฮทโ‚˜ x ฮทแตฅ

d.

ฮทแตฅ = ฮทโ‚˜ x ฮทโ‚˜โ‚

Discuss
Answer: (b).ฮทโ‚˜ = ฮทแตฅ . ฮทโ‚˜โ‚
Q58.
Fanning equation is given by below equation. It is applicable to __________ region flow.

a.

transition

b.

laminar

c.

turbulent

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q59.
The head loss due to sudden expansion is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q60.
Pressure drop for turbulent fluid flow through a circular pipe is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
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