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 25 of 77

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Q241.
Interstage coolers are provided in a multistage compressor to

a.

save power in compressing a given volume to a given pressure.

b.

cool the delivered air.

c.

achieve the exact delivery pressure.

d.

none of these.

Discuss
Answer: (a).save power in compressing a given volume to a given pressure.
Q242.
The ratio of the wall drag to the form drag in the Stoke's law range (for motion of spherical particles in a stationary fluid) is

a.

0.5

b.

1

c.

2

d.

0.33

Discuss
Answer: (c).2
Q243.
For turbulent flow in smooth circular pipe, the velocity distribution is a function of the distance 'd' measured from the wall of the pipe and the friction velocity 'v', and it follows a __________ relationship.

a.

logarithmic

b.

linear

c.

hyperbolic

d.

parabolic

Discuss
Answer: (a).logarithmic
Q244.
Maintenance cost of a __________ pump for a particular duty is the least.

a.

centrifugal

b.

reciprocating

c.

volute

d.

gear

Discuss
Answer: (a).centrifugal
Q245.
Choking in case of pipe flow means that a

a.

specified mass flow rate can not be achieved.

b.

valve is closed in the line.

c.

restriction in flow cross-section area occurs.

d.

none of these.

Discuss
Answer: (a).specified mass flow rate can not be achieved.
Q246.
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

a.

thermal conductivity

b.

electrical conductivity

c.

specific gravity

d.

electrical resistivity

Discuss
Answer: (b).electrical conductivity
Q247.
The nominal size of a hose pipe is specified by its

a.

I.D.

b.

O.D.

c.

thickness

d.

none of these

Discuss
Answer: (a).I.D.
Q248.
Transition from laminar flow to turbulent flow is aided by the

a.

surface roughness and curvature (i.e.sharp corners).

b.

vibration.

c.

pressure gradient and the compressibility of the flowing medium.

d.

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

Discuss
Answer: (d).all (a), (b) & (c).
Q249.
For flow of fluids through packed bed, the superficial velocity is

a.

less than the average velocity through channels.

b.

more than the average velocity through channels.

c.

dependent on the pressure drop across the bed.

d.

same as the average velocity through channels.

Discuss
Answer: (a).less than the average velocity through channels.
Q250.
Cd is always __________ Cc.

a.

greater than

b.

less than

c.

equal to

d.

either more or less than

Discuss
Answer: (a).greater than
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