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 44 of 77

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Q431.
An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic ?

a.

Sewage sludge

b.

Rubber latex

c.

Blood

d.

Sugar solution

Discuss
Answer: (a).Sewage sludge
Q432.
The capacity of a centrifugal pump Can be increased by increasing the

a.

impeller diameter or speed.

b.

number of pumps and joining them in series,

c.

number of pumps and joining them in parallel.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q433.
Which law is followed by the velocity distribution in the turbulent boundary layer?

a.

Parabolic law

b.

Linear law

c.

Logarithmic law

d.

None of these

Discuss
Answer: (c).Logarithmic law
Q434.
The losses in open channel flow generally vary as the

a.

inverse of the roughness.

b.

first power of the roughness.

c.

square of the velocity.

d.

inverse square of hydraulic radius.

Discuss
Answer: (b).first power of the roughness.
Q435.
Rise of liquid in a capillary tube is due to

a.

cohesion

b.

adhesion

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q436.
At what value of crank angle (roughly), no flow of water from or into the air vessel takes place in case of a double acting reciprocating pump ?

a.

40° and 140°

b.

45° and 60°

c.

90° and 80°

d.

20° and 120°

Discuss
Answer: (a).40° and 140°
Q437.
The range of a particular rotameter can be increased by

a.

use of floats of different densities.

b.

no means.

c.

increasing the diameter of the float.

d.

decreasing the diameter of the float.

Discuss
Answer: (a).use of floats of different densities.
Q438.
Which of the following is dimensionless ?

a.

Angular velocity

b.

Fanning friction factor

c.

Specific volume

d.

None of these

Discuss
Answer: (b).Fanning friction factor
Q439.
A liquid is pumped at the rate of 600 litres using 1000 rpm. If the rpm is changed to 1100, the liquid pumped is __________ litres.

a.

600

b.

660

c.

1.1

d.

60

Discuss
Answer: (b).660
Q440.
A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.

a.

sump

b.

volute

c.

vacuum

d.

submerged

Discuss
Answer: (c).vacuum
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