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 70 of 77

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Q691.
Gear pump

a.

is a positive displacement pump.

b.

is a centrifugal pump.

c.

is a non-positive displacement pump.

d.

can be started with delivery valve closed.

Discuss
Answer: (a).is a positive displacement pump.
Q692.
Most of the centrifugal pumps used in chemical plants are usually __________ driven.

a.

steam

b.

diesel engine

c.

electric motor

d.

gas turbine

Discuss
Answer: (c).electric motor
Q693.
Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the

a.

back flow of fluid in the event of stoppage of pump.

b.

discharge pressure.

c.

flow of liquid during operation of the pump.

d.

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

Discuss
Answer: (a).back flow of fluid in the event of stoppage of pump.
Q694.
Which of the following two quantities when same, makes one pipe system equivalent to another pipe system ?

a.

Head & discharge

b.

Length & discharge

c.

Length & diameter

d.

Friction factor & diameter.

Discuss
Answer: (a).Head & discharge
Q695.
The kinetic energy correction factor for velocity distribution of laminar flow is

a.

0.5

b.

1.66

c.

1

d.

2

Discuss
Answer: (b).1.66
Q696.
Priming of a centrifugal pump is done to

a.

increase the mass flow rate of fluid.

b.

develop effective pressure rise by the pump.

c.

avoid chances of separation inside the impeller.

d.

none of these.

Discuss
Answer: (c).avoid chances of separation inside the impeller.
Q697.
Bed pressure drop in an air fluidised bed of catalyst particles (ρₚ = 200 kg/m³, Dₚ = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is

a.

90

b.

60

c.

45

d.

30

Discuss
Answer: (b).60
Q698.
For pipes that must be broken at intervals for maintenance, the connector used should be a/an

a.

union

b.

tee

c.

reducer

d.

elbow

Discuss
Answer: (a).union
Q699.
Absolute viscosity of a fluid is a function of the __________ of the fluid.

a.

motion

b.

pressure & temperature

c.

shearing stress

d.

both (b) & (c)

Discuss
Answer: (d).both (b) & (c)
Q700.
Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.

a.

For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter.

b.

Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter.

c.

Venturimeter occupies less space than an orificemeter.

d.

Venturimeter incurs less power loss compared to an equivalent orificemeter.

Discuss
Answer: (c).Venturimeter occupies less space than an orificemeter.
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