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 45 of 77

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Q441.
Hydraulic __________ works on the principle of Pascal's law of transmission of fluid pressure.

a.

press

b.

turbine

c.

pump

d.

coupling

Discuss
Answer: (a).press
Q442.
A 2" gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was ฮ”p. For the same discharge, the pressure drop across globe valve is

a.

ฮ”p

b.

< ฮ”p

c.

> ฮ”p

d.

ฮ”p²

Discuss
Answer: (c).> ฮ”p
Q443.
The contraction co-efficient for Borda's mouthpiece (for frictionless fluid) is

a.

0.1

b.

0.5

c.

0.94

d.

1

Discuss
Answer: (b).0.5
Q444.
Purpose of air lift pump is to

a.

compress air.

b.

lift compressed air.

c.

lift water from a well by using compressed air.

d.

lift air under negative pressure.

Discuss
Answer: (c).lift water from a well by using compressed air.
Q445.
Pick out the correct statement pertaining to venturimeter.

a.

A venturimeter with a fixed pressure drop discharges more, when the flow is vertically downward, than when the flow is vertically upward.

b.

The co-efficient of contraction of a venturimeter is always unity.

c.

For a fixed pressure drop, the discharge of a gas through a venturimeter is greater, when compressibility is taken into account, than when it is neglected.

d.

none of these.

Discuss
Answer: (d).none of these.
Q446.
Potential function is applicable only for __________ flow.

a.

irrotational

b.

turbulent

c.

steady

d.

none of these

Discuss
Answer: (a).irrotational
Q447.
Which of the following exemplifies a three dimensional fluid flow ?

a.

Fluid flow at the inlet to a nozzle

b.

Fluid flow between parallel plates

c.

Viscous fluid flow between converging plates

d.

None of these

Discuss
Answer: (a).Fluid flow at the inlet to a nozzle
Q448.
Volute of a centrifugal pump should be designed in a fashion, such that the

a.

kinetic head gets converted into static head.

b.

moving stream gradually reduces velocity.

c.

mean velocity remains constant.

d.

none of these.

Discuss
Answer: (a).kinetic head gets converted into static head.
Q449.
The head loss due to sudden contraction is proportional to

a.

velocity

b.

velocity head

c.

turbulence

d.

none of these

Discuss
Answer: (b).velocity head
Q450.
Cavitation occurs in a centrifugal pump when the suction pressure is

a.

less than the vapour pressure of the liquid at that temperature.

b.

greater than the vapour pressure of the liquid at that temperature.

c.

equal to the vapour pressure.

d.

equal to the developed head.

Discuss
Answer: (a).less than the vapour pressure of the liquid at that temperature.
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