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.
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°
Q432.
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.
Q433.
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
Q434.
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
Q435.
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
Q436.
Non-colloidal solution is an example of the __________ fluid.

a.

non-Newtonion

b.

Newtonion

c.

dilatent

d.

pseudoplastic

Discuss
Answer: (b).Newtonion
Q437.
Boundary layer separation is caused by the

a.

reduction of pressure below vapour pressure.

b.

reduction of pressure gradient to zero.

c.

adverse pressure gradient.

d.

reduction of boundary layer thickness to zero.

Discuss
Answer: (c).adverse pressure gradient.
Q438.
Identification of pipelines carrying different liquids and gases is done by the __________ of the pipe.

a.

diameter

b.

colour

c.

altitude

d.

none of these

Discuss
Answer: (b).colour
Q439.
Pick out the correct statement.

a.

Human blood is a Newtonion fluid.

b.

A Newtonion fluid obeys Newton's law of cooling.

c.

For a non-Newtonion fluid, a straight line passes through the origin in a plot between shear stress and shear gradient.

d.

Thin lubricating oil is an example of a non-Newtonion fluid.

Discuss
Answer: (b).A Newtonion fluid obeys Newton's law of cooling.
Q440.
What is the unit of kinematic viscosity in SI unit ?

a.

m²/sec

b.

N/m² . sec

c.

Kg . sec/m

d.

None of these

Discuss
Answer: (a).m²/sec
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