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 48 of 77

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Q471.
Which of the following facilitates close control of flow of fluids ?

a.

Gate valve

b.

Globe valve

c.

Butterfly valve

d.

Check valve

Discuss
Answer: (b).Globe valve
Q472.
Fanning friction factor equation applies to the __________ fluid flow.

a.

non-isothermal condition of

b.

compressible

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (d).neither (a) nor (b)
Q473.
For an ideal fluid flow, Reynolds number is

a.

2100

b.

100

c.

0

d.

∞

Discuss
Answer: (d).∞
Q474.
Stoke's equation is valid in the Reynolds number range

a.

0.01 to 0.1

b.

0.1 to 2

c.

2 to 10

d.

10 to 100

Discuss
Answer: (a).0.01 to 0.1
Q475.
The ratio of pressure forces to inertial forces is called the __________ number.

a.

Froude

b.

Euler

c.

Reynold

d.

Mach

Discuss
Answer: (b).Euler
Q476.
Bernoulli's equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli's equation ?

A. Fluid flow is frictionless & irrotational.
B. Fluid flow is steady.
C. Fluid flow is uniform & turbulent.
D. Fluid is compressible.
E. Fluid is incompressible.

a.

A, C, D

b.

B, D, E

c.

A, B, E

d.

A, D, E

Discuss
Answer: (c).A, B, E
Q477.
Cavitation in a centrifugal pump results from

a.

high discharge pressure

b.

low barometric pressure

c.

high discharge velocity

d.

high discharge rate

Discuss
Answer: (b).low barometric pressure
Q478.
For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is

a.

0.5

b.

1

c.

0.66

d.

< 0.5

Discuss
Answer: (b).1
Q479.
Power required by a centrifugal pump is proportional to (where, D = diameter, N = r.p.m)

a.

N²D³

b.

ND²

c.

N²D

d.

N³D⁵

Discuss
Answer: (d).N³D⁵
Q480.
Equivalent length of a pipe fitting is

a.

dependent on Reynolds number.

b.

independent of Reynolds number.

c.

dependent on the length of the pipe.

d.

none of these.

Discuss
Answer: (a).dependent on Reynolds number.
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