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 63 of 77

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Q621.
Air vessel fitted to a reciprocating pump

a.

increases the work done.

b.

decreases the work done.

c.

causes cavitation.

d.

results in non-uniform discharge.

Discuss
Answer: (b).decreases the work done.
Q622.
Deformation drag, which is caused by widespread deformation of fluid around the immersed body

a.

occurs when Nส€โ‚‘ is very small.

b.

is primarily a friction drag.

c.

is independent of body length.

d.

depends mainly on cross-sectional shape.

Discuss
Answer: (a).occurs when Nส€โ‚‘ is very small.
Q623.
In isotropic turbulence, the __________ are equal to each other.

a.

temporal velocity components

b.

mean square of velocity fluctuations in the three co-ordinate directions

c.

root mean square of velocity fluctuations in the three co-ordinate directions

d.

none of these

Discuss
Answer: (b).mean square of velocity fluctuations in the three co-ordinate directions
Q624.
Pitot tube measures the __________ of a fluid.

a.

pressure

b.

average velocity

c.

average flow rate

d.

point velocity

Discuss
Answer: (d).point velocity
Q625.
Which of the following is not dimension-less?

a.

Froude number

b.

Kinematic viscosity

c.

Pressure co-efficient

d.

None of these

Discuss
Answer: (b).Kinematic viscosity
Q626.
In laminar flow through a round tube, the discharge varies

a.

linearly as the viscosity.

b.

inversely as the pressure drop.

c.

inversely as the viscosity.

d.

as the square of the radius.

Discuss
Answer: (c).inversely as the viscosity.
Q627.
Which is not a variable head meter ?

a.

Venturimeter

b.

Pitot tube

c.

Rotameter

d.

None of these

Discuss
Answer: (c).Rotameter
Q628.
The pipe wall thickness is minimum for a pipe of given nominal size having schedule number

a.

160

b.

120

c.

80

d.

40

Discuss
Answer: (d).40
Q629.
Open channel liquid flow is most conveniently measured by a

a.

hot wire anemometer

b.

notch

c.

rotameter

d.

segmental orifice

Discuss
Answer: (b).notch
Q630.
Toothpaste is a

a.

Bingham plastic

b.

pseudoplastic

c.

Newtonion liquid

d.

dilatent

Discuss
Answer: (d).dilatent
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