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 20 of 77

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Q191.
If 'x' is the depth of flow in an open channel of large width, then the hydraulic radius is equal to

a.

x

b.

x/2

c.

x/3

d.

2x/3

Discuss
Answer: (a).x
Q192.
The rate of shear versus the shear stress curves are time dependent for __________ fluid.

a.

thixotropic

b.

rheopectic

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) & (b)
Q193.
In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is

a.

0.44

b.

0.044

c.

4.4

d.

44

Discuss
Answer: (a).0.44
Q194.
A pressure of 10 m head of water is equivalent to __________ kN/m².

a.

98

b.

147

c.

196

d.

49

Discuss
Answer: (a).98
Q195.
A pressure head of 320 metres of water in meters of CCl₄ (sp.gr = 1.6) will be

a.

100

b.

200

c.

320

d.

160

Discuss
Answer: (b).200
Q196.
In fluid flow, the boundary layer separation can not occur

a.

in case of boundaries experiencing form drag.

b.

at points of abrupt changes in the flow directions.

c.

in laminar flow.

d.

none of these.

Discuss
Answer: (d).none of these.
Q197.
For a given fluid flow rate, which of the following incurs maximum head loss ?

a.

Orifice meter

b.

Venturimeter

c.

Flow nozzle

d.

All of them incur the same head loss

Discuss
Answer: (a).Orifice meter
Q198.
Which of the following assumptions enables the Euler's equation of motion to be integrated ?

a.

The fluid is incompressible.

b.

The fluid is non-viscous.

c.

The continuity equation is satisfied.

d.

The flow is rotational and incompressible.

Discuss
Answer: (a).The fluid is incompressible.
Q199.
In case of a pipe exit fitted with a nozzle, the

a.

conversion of kinetic head to pressure head is facilitated.

b.

conversion of pressure head to kinetic head is facilitated.

c.

power transmitted through the nozzle is maximum, when the head lost due to friction in the pipe is equal to one third of the total supply head.

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q200.
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.

a.

Newtonion

b.

viscous

c.

dilatant

d.

non-viscous

Discuss
Answer: (c).dilatant
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