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 53 of 77

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Q521.
Boiler feed water pump is usually a __________ pump.

a.

reciprocating

b.

gear

c.

multistage centrifugal

d.

diaphragm

Discuss
Answer: (c).multistage centrifugal
Q522.
Forces acting on a particle settling in fluid are __________ forces.

a.

gravitational & buoyant.

b.

centrifugal & drag.

c.

gravitational or centrifugal buoyant drag.

d.

external, drag & viscous.

Discuss
Answer: (c).gravitational or centrifugal buoyant drag.
Q523.
For a fluid rotating at constant angular velocity about vertical axis as a rigid body, the pressure intensity varies as the

a.

square of the radial distance.

b.

radial distance linearly.

c.

inverse of the radial distance.

d.

elevation along vertical direction.

Discuss
Answer: (a).square of the radial distance.
Q524.
In a dry packed bed, the pressure drop will be changed by increasing the flow rate as

a.

V^1.8

b.

V^(-0.8)

c.

V

d.

V⁻¹

Discuss
Answer: (a).V^1.8
Q525.
Specific speed of a centrifugal pump depends upon the __________ head.

a.

suction

b.

delivery

c.

manometric

d.

none of these

Discuss
Answer: (d).none of these
Q526.
Navier-Stokes equation is useful in the analysis of __________ fluid flow problems.

a.

non-viscous

b.

viscous

c.

turbulent

d.

rotational

Discuss
Answer: (b).viscous
Q527.
With increase in molecular weight of the gas, the head developed by a centrifugal compressor will

a.

decrease

b.

increase

c.

remain same

d.

unpredictable

Discuss
Answer: (a).decrease
Q528.
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).

a.

H

b.

12.6 H

c.

13.6 H

d.

14.6 H

Discuss
Answer: (b).12.6 H
Q529.
The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number.

a.

increases

b.

decreases

c.

remains same

d.

may increase or decrease

Discuss
Answer: (b).decreases
Q530.
Low specific speed of a pump implies that, it is a/an __________ pump.

a.

axial flow

b.

centrifugal

c.

mixed flow

d.

none of these

Discuss
Answer: (b).centrifugal
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