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 33 of 77

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Q321.
To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump.

a.

reciprocating

b.

centrifugal

c.

volute

d.

rotary vacuum

Discuss
Answer: (a).reciprocating
Q322.
In area meter (e.g., rotameter), with increase in the fluid flow rate, the

a.

pressure drop increases linearly.

b.

pressure drop is almost constant.

c.

area through which fluid flows does not vary.

d.

none of these.

Discuss
Answer: (b).pressure drop is almost constant.
Q323.
The buoyant force acting on a floating body is dependent on the

a.

viscosity of the liquid.

b.

weight of the liquid displaced.

c.

depth of immersion of the body.

d.

surface tension of the liquid.

Discuss
Answer: (b).weight of the liquid displaced.
Q324.
A Newtonion fluid is that

a.

which follows Newton's law of motion.

b.

which needs a minimum shear, before it starts deforming.

c.

for which shear & deformation are related as ฯ„ = ฮผ(โˆ‚u/โˆ‚y)

d.

none of these.

Discuss
Answer: (c).for which shear & deformation are related as ฯ„ = ฮผ(โˆ‚u/โˆ‚y)
Q325.
A bed consists of particles of density 2000 kg/m³. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is

a.

25.61 kPa

b.

11.77 kPa

c.

14.86 kPa

d.

21.13 kPa

Discuss
Answer: (b).11.77 kPa
Q326.
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?

a.

Decrease in effect

b.

Increase in thrust

c.

Develops noise

d.

Develops high pressure

Discuss
Answer: (d).Develops high pressure
Q327.
For a specific centrifugal air blower operating at constant speed & capacity, the power requirement and pressure vary

a.

directly as square of gas density.

b.

directly as gas density.

c.

directly as square root of gas density.

d.

inversely as gas density.

Discuss
Answer: (b).directly as gas density.
Q328.
Capillary tube method of viscosity measurement is based on the

a.

Hagen-Poiseulle's equation

b.

Stoke's law

c.

Navier-stokes equation

d.

none of these

Discuss
Answer: (a).Hagen-Poiseulle's equation
Q329.
It is possible to integrate an automatic flow controller to a

a.

flow nozzle

b.

venturimeter

c.

rotameter

d.

none of these

Discuss
Answer: (c).rotameter
Q330.
If Blausius or Darcey friction factor is 'fโ‚' then the Fanning friction factor is equal to

a.

fโ‚/4

b.

4fโ‚‚

c.

2fโ‚

d.

fโ‚/2

Discuss
Answer: (a).fโ‚/4
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