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 2 of 77

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Q11.
A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

a.

10 m

b.

11 m

c.

12 m

d.

20 m

Discuss
Answer: (b).11 m
Q12.
Pick out the Kozney-Karman equation (valid for low Nส€โ‚‘) for fluid flow through a packed bed of solids.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q13.
Characteristic curves for a centrifugal pump plotted against its capacity is shown in the diagram. x, y and z denote respectively

a.

efficiency, head and B.H.P.

b.

head, efficiency and B.H.P.

c.

B.H.P., efficiency and head

d.

efficiency, B.H.P. and head

Discuss
Answer: (b).head, efficiency and B.H.P.
Q14.
Specific speed for a centrifugal pump is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q15.
For flow through a venturi at a particular discharge, the correct relationships among velocities at point X, Y and Z would be

a.

Vโ‚ < Vโ‚‚ < Vโ‚ƒ

b.

Vโ‚‚ > Vโ‚ and Vโ‚‚ > Vโ‚ƒ

c.

Vโ‚ > Vโ‚‚ > Vโ‚ƒ

d.

none of these.

Discuss
Answer: (b).Vโ‚‚ > Vโ‚ and Vโ‚‚ > Vโ‚ƒ
Q16.
In frictional fluid flow, the following quantity is

a.

constant along a streamline.

b.

not constant along a streamline.

c.

increased in the direction of flow.

d.

none of these.

Discuss
Answer: (b).not constant along a streamline.
Q17.
What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q18.
For the manometer set up shown in the figure, the pressure difference Pแด€ - Pส™ is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q19.
Drag co-officient Cแด…, in Stoke's law range is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q20.
In power law, consider the following equation, then the fluid is

a.

Newtonian

b.

dilatant

c.

thixotropic

d.

rheopectic

Discuss
Answer: (a).Newtonian
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