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 64 of 77

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Q631.
Creeping flow around a sphere is defined, when particle Reynolds number is

a.

< 2100

b.

< 0.1

c.

> 2.5

d.

< 500

Discuss
Answer: (b).< 0.1
Q632.
In a free vortex, the

a.

velocity changes linearly with radial distance.

b.

flow is necessarily rotational.

c.

radial component of velocity is same everywhere.

d.

stream lines are not circular.

Discuss
Answer: (a).velocity changes linearly with radial distance.
Q633.
Pick out the wrong statement.

a.

The eddy viscosity is a function of the type of turbulence involved.

b.

The eddy viscosity is a fluid property.

c.

The viscosity of gas increases with increase in temperature.

d.

The viscosity of a liquid increases with decrease in temperature.

Discuss
Answer: (b).The eddy viscosity is a fluid property.
Q634.
The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is

a.

hyperbolic

b.

parabolic

c.

linear

d.

none of these

Discuss
Answer: (b).parabolic
Q635.
In fluid flow, the stagnation point is defined as a point, where the __________ is zero.

a.

flow velocity

b.

pressure

c.

total energy

d.

all (a), (b) and (c)

Discuss
Answer: (a).flow velocity
Q636.
A special type of liquid transporting device is the diffuser pump, in which __________ are minimised.

a.

bearing losses

b.

disk friction

c.

shock losses

d.

cavitation

Discuss
Answer: (c).shock losses
Q637.
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around

a.

2000

b.

10

c.

100

d.

1000

Discuss
Answer: (d).1000
Q638.
Centrifugal pumps as compared to reciprocating pumps

a.

run at a lower speed for the same discharge.

b.

do not need priming.

c.

deliver fluid with pulsating/fluctuating discharge.

d.

can be run with discharge line valve closed for a short interval.

Discuss
Answer: (d).can be run with discharge line valve closed for a short interval.
Q639.
What type of motion the fluid element undergoes, when it changes from one position to another position, such that the angle between the two sides change ?

a.

Rotation

b.

Translation

c.

Linear deformation

d.

Angular deformation

Discuss
Answer: (d).Angular deformation
Q640.
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?

a.

Rotational

b.

Unsteady

c.

Turbulent

d.

Non-uniform

Discuss
Answer: (d).Non-uniform
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