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 1 of 77

Discover more Topics under Basic Chemical Engineering

Q1.
Three piping networks as shown in the figure are placed horizontally. They are made using identical pipe segments and are subjected to the same pressure drop across them. Assuming no pressure losses at junctions, the flow rates across the three networks are related as Qโ‚ : Qโ‚‚ : Qโ‚ƒ.

a.

1:โˆš3:2

b.

1:2:3

c.

1:2:2

d.

1:โˆš2:โˆš2

Discuss
Answer: (c).1:2:2
Q2.
For flow through an orifice from a reservoir, the actual velocity at the vena con-tracta is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q3.
Which of the following is the 'Blaussius equation', relating friction factor to the Reynolds number ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q4.
The energy equation, given by following equation, where (E = internal energy/mass), is applicable to

a.

perfect gases only.

b.

isothermal flow of gases.

c.

adiabatic unsteady flow of gases.

d.

all compressible fluids.

Discuss
Answer: (d).all compressible fluids.
Q5.
What is the ratio of fluid carrying capacity of two pipes having diameters dโ‚ and dโ‚‚ respectively ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q6.
The equivalent diameter for flow through a rectangular duct of width B and height H is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q7.
Pick out the Hagen-Poiseulle's equation.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q8.
During fluid flow, variation of shear stress(ฯ„) with velocity gradientat (dv/dy) constant pressure temperature is shown below in the figure. In the below figure, Binghom plastic is represented by the curve .

a.

V

b.

II

c.

III

d.

I

Discuss
Answer: (b).II
Q9.
Which is the correct relationship for a centrifugal pump ? (where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q10.
The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which "sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis". The centre of pressure of a rectangular surface (of width 'w') immersed vertically in a static mass of fluid is at a depth of(where, y = depth of the liquid)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Page 1 of 77