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 57 of 77

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Q561.
The schedule number of a pipe is an indication of its

a.

size

b.

roughness

c.

material density

d.

wall thickness

Discuss
Answer: (d).wall thickness
Q562.
Minimum porosity for fluidisation is

a.

that corresponding to static bed.

b.

that corresponding to completely fluidised bed.

c.

the porosity of the bed when true fluidisation begins.

d.

less than that of the static bed.

Discuss
Answer: (c).the porosity of the bed when true fluidisation begins.
Q563.
A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now

a.

increase

b.

decrease

c.

remain same

d.

data insufficient to predict

Discuss
Answer: (b).decrease
Q564.
Steady non-uniform flow is exemplified by flow through a/an

a.

long pipe at constant rate.

b.

long pipe at decreasing rate.

c.

expanding tube at increasing rate.

d.

expanding tube at constant rate.

Discuss
Answer: (d).expanding tube at constant rate.
Q565.
The maximum depth from which a centrifugal pump can draw water is

a.

dependent on the speed of the pump.

b.

dependent on the power of the pump.

c.

34 feet.

d.

150 feet.

Discuss
Answer: (c).34 feet.
Q566.
Design of the casing of centrifugal pump should be such as to minimise the

a.

back flow through impeller

b.

loss of kinetic head

c.

loss of static head

d.

none of these

Discuss
Answer: (b).loss of kinetic head
Q567.
Which of the following is used for pumping crude oil from oil well ?

a.

Single stage centrifugal pump

b.

Gear pump

c.

Screw pump

d.

Duplex/triplex reciprocating pump

Discuss
Answer: (d).Duplex/triplex reciprocating pump
Q568.
The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the

a.

length is shorter.

b.

throat diameter is more.

c.

sudden expansion of flow in the downstream occurs.

d.

distance between the throat and the inlet is more.

Discuss
Answer: (c).sudden expansion of flow in the downstream occurs.
Q569.
__________ flow means the flow of incompressible fluid with no shear.

a.

Potential

b.

Streamline

c.

Creep

d.

Boundary layer

Discuss
Answer: (a).Potential
Q570.
A centrifugal pump has the following specifications:

Power = 4 H.P.
Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.

If its speed is halved, the power consumed now will be __________ hp.

a.

0.5

b.

2

c.

4

d.

1

Discuss
Answer: (a).0.5
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