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 42 of 77

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Q411.
Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will __________ the gas discharge pressure.

a.

increase

b.

decrease

c.

not change

d.

exponentially decrease

Discuss
Answer: (a).increase
Q412.
In continuous fluidisation

a.

solids are completely entrained.

b.

the pressure drop is less than that for batch fluidisation.

c.

there is no entrainment of solids.

d.

velocity of the fluid is very small.

Discuss
Answer: (a).solids are completely entrained.
Q413.
Drag force on the float of a rotameter is(where Q = flow rate of the )

a.

โˆ Q

b.

โˆ โˆšQ

c.

โˆ Q²

d.

constant

Discuss
Answer: (d).constant
Q414.
The unit of dynamic viscosity in SI unit is

a.

kg/m . sec

b.

N/m²

c.

m² /sec.

d.

m/N. sec.

Discuss
Answer: (a).kg/m . sec
Q415.
Pressure drop (ฮ”p) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as

a.

V^1.8

b.

V^(-0.2)

c.

V^(2.7)

d.

V²

Discuss
Answer: (d).V²
Q416.
Dean number is concerned with the

a.

fluid-particle interaction.

b.

fluid flow through helical pipes.

c.

power consumption in agitated vessels.

d.

psychrometry.

Discuss
Answer: (b).fluid flow through helical pipes.
Q417.
Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss ?

a.

Flow nozzle

b.

Venturimeter

c.

Rotameter

d.

Orificemeter

Discuss
Answer: (b).Venturimeter
Q418.
For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).

a.

V/Vโ‚˜โ‚โ‚“ = (x/r)^1/7

b.

V/Vโ‚˜โ‚โ‚“ = (r/x)^1/7

c.

V/Vโ‚˜โ‚โ‚“ = (x.r)^1/7

d.

none of these

Discuss
Answer: (a).V/Vโ‚˜โ‚โ‚“ = (x/r)^1/7
Q419.
Which of the following has the maximum compression ratio ?

a.

Blower

b.

Compressor

c.

Vacuum pump

d.

Fan

Discuss
Answer: (c).Vacuum pump
Q420.
Scale up of agitator design requires

a.

geometrical similarity only.

b.

dynamic similarity only.

c.

both geometrical and dynamic similarity.

d.

all geometrical, dynamic and kinematic similarity.

Discuss
Answer: (d).all geometrical, dynamic and kinematic similarity.
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