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 44 of 77

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Q431.
The head loss due to sudden contraction is proportional to

a.

velocity

b.

velocity head

c.

turbulence

d.

none of these

Discuss
Answer: (b).velocity head
Q432.
Cavitation occurs in a centrifugal pump when the suction pressure is

a.

less than the vapour pressure of the liquid at that temperature.

b.

greater than the vapour pressure of the liquid at that temperature.

c.

equal to the vapour pressure.

d.

equal to the developed head.

Discuss
Answer: (a).less than the vapour pressure of the liquid at that temperature.
Q433.
Glass pipes can be joined by

a.

flanges

b.

welding

c.

soldering

d.

bell and spigot joint

Discuss
Answer: (d).bell and spigot joint
Q434.
If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is

a.

same in both the tubes.

b.

greater in 1 mm dia tube.

c.

greater in 0.5 mm dia tube.

d.

zero in both the tubes.

Discuss
Answer: (c).greater in 0.5 mm dia tube.
Q435.
For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of

a.

2

b.

<2

c.

>2

d.

1/2

Discuss
Answer: (a).2
Q436.
Weber number is the ratio of inertial force to __________ force.

a.

surface tension

b.

gravity

c.

viscous

d.

elastic

Discuss
Answer: (a).surface tension
Q437.
The curve of metacentre for a floating body __________ the curve of buoyancy.

a.

is always below

b.

is the evolute of

c.

intersects at right angle

d.

is tangential to

Discuss
Answer: (b).is the evolute of
Q438.
For very low pressure and high discharge rate, the compressor used is a/an __________ compressor.

a.

axial

b.

reciprocating

c.

rotary

d.

none of these

Discuss
Answer: (c).rotary
Q439.
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

a.

piston

b.

gear

c.

positive displacement

d.

sump

Discuss
Answer: (b).gear
Q440.
The main factor on which the behaviour of a mass of fluidised solid depends mainly is the

a.

fluid characteristics

b.

particle size

c.

both (a) and (b)

d.

neither (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
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