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 41 of 77

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Q401.
The terminal velocity of a particle moving through a fluid varies as dโ‚šโฟ. The value of n is equal to __________ in Stoke's law regime.

a.

1

b.

0.5

c.

2

d.

1.5

Discuss
Answer: (c).2
Q402.
Function of air vessel provided in a reciprocating pump is to

a.

reduce discharge fluctuation.

b.

reduce the danger of cavitation.

c.

avoid the necessity of priming.

d.

increase the pump efficiency.

Discuss
Answer: (a).reduce discharge fluctuation.
Q403.
The Prandtl pitot tube measures the

a.

velocity at a point in the flow.

b.

pressure at a point.

c.

average flow velocity.

d.

pressure difference in pipe flow.

Discuss
Answer: (a).velocity at a point in the flow.
Q404.
Vena-contracta formed during flow of a liquid through an orificemeter has

a.

minimum liquid cross-section.

b.

more diameter compared to orifice diameter.

c.

minimum velocity of fluid stream.

d.

none of these.

Discuss
Answer: (a).minimum liquid cross-section.
Q405.
As per Newton's law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, ฮผ = fluid viscosity)

a.

1/ฮผ

b.

ฮผ

c.

ฮผ²

d.

1/ฮผ²

Discuss
Answer: (b).ฮผ
Q406.
Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will __________ the gas discharge pressure.

a.

increase

b.

decrease

c.

not change

d.

exponentially decrease

Discuss
Answer: (a).increase
Q407.
In continuous fluidisation

a.

solids are completely entrained.

b.

the pressure drop is less than that for batch fluidisation.

c.

there is no entrainment of solids.

d.

velocity of the fluid is very small.

Discuss
Answer: (a).solids are completely entrained.
Q408.
Drag force on the float of a rotameter is(where Q = flow rate of the )

a.

โˆ Q

b.

โˆ โˆšQ

c.

โˆ Q²

d.

constant

Discuss
Answer: (d).constant
Q409.
The unit of dynamic viscosity in SI unit is

a.

kg/m . sec

b.

N/m²

c.

m² /sec.

d.

m/N. sec.

Discuss
Answer: (a).kg/m . sec
Q410.
Pressure drop (ฮ”p) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as

a.

V^1.8

b.

V^(-0.2)

c.

V^(2.7)

d.

V²

Discuss
Answer: (d).V²
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