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 3 of 77

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Q21.
The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides 'x' & 'y' is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q22.
Various efficiencies of a centrifugal pump are related as (where, ηₘ = mechanical efficiency ηᵥ = volumetric efficiency. ηₘₐ = manometric efficiency ηₒ = overall efficiency)

a.

ηₘₐ x ηₘ x ηᵥ = ηₒ

b.

ηₘ = ηᵥ . ηₘₐ

c.

ηₘₐ = ηₘ x ηᵥ

d.

ηᵥ = ηₘ x ηₘₐ

Discuss
Answer: (b).ηₘ = ηᵥ . ηₘₐ
Q23.
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)
Q24.
The head loss due to sudden expansion is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q25.
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
Q26.
The Kozney-Carman equation, rewritten in terms of non-dimensional numbers gives (ΔP/pu² ) proportional to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q27.
The equation given below is called the __________ .

a.

Colebrook formula

b.

Von-Karman equation

c.

Fanning equation

d.

none of these

Discuss
Answer: (b).Von-Karman equation
Q28.
Pick out the Blake-Plummer equation (valid for large Nʀₑ) for fluid flow through beds of solids.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q29.
The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q30.
For flow through a venturi at a particular discharge, the correct relationships among heads at points X, Y, and Z are

a.

h₁ > h₂ < h₃

b.

h₁ > h₂ > h₃

c.

h₂ < h₁ < h₃

d.

h₁ < h₂ < h₃

Discuss
Answer: (a).h₁ > h₂ < h₃
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