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 31 of 77

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Q301.
Velocity head on sudden enlargement in a horizontal pipe is converted into __________ head.

a.

elevation

b.

pressure

c.

both (a) & (b)

d.

neither (a) nor (b)

Discuss
Answer: (b).pressure
Q302.
The momentum correction factor for the velocity distribution of laminar flow is

a.

1.3

b.

1.66

c.

2.5

d.

none of these

Discuss
Answer: (d).none of these
Q303.
For the same flow rate of a fluid, the pressure drop is the least for

a.

venturimeter

b.

orificemeter

c.

flow-nozzle

d.

ฮ”p is same for all

Discuss
Answer: (a).venturimeter
Q304.
The valve commonly used in pipes larger than 2" dia is a

a.

globe valve

b.

plug-cock

c.

gate valve

d.

check valve

Discuss
Answer: (c).gate valve
Q305.
Foot valves are provided in the suction line of a centrifugal pump to

a.

avoid priming, every time we start the pump.

b.

remove the contaminant present in the liquid.

c.

minimise the fluctuation in discharge.

d.

control the liquid discharge.

Discuss
Answer: (a).avoid priming, every time we start the pump.
Q306.
An ideal fluid is

a.

frictionless & incompressible.

b.

one, which obeys Newton's law of viscosity.

c.

highly viscous.

d.

none of these.

Discuss
Answer: (a).frictionless & incompressible.
Q307.
The distance between metacentre and __________ is called metacentric height.

a.

water surface

b.

centre of gravity

c.

centre of buoyancy

d.

none of these

Discuss
Answer: (b).centre of gravity
Q308.
Check valve is used for __________ flow.

a.

very precise control of

b.

unidirectional

c.

multidirectional

d.

none of these

Discuss
Answer: (b).unidirectional
Q309.
Capacity of a rotary gear pump can be varied by

a.

changing the speed of rotation.

b.

bleeding air into suction.

c.

bypassing liquid from the suction or discharge line.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q310.
For a given Reynolds number, in a hydraulically smooth pipe, further smoothening __________ the friction factor.

a.

brings about no further reduction of

b.

increases

c.

decreases

d.

none of these

Discuss
Answer: (a).brings about no further reduction of
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