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 4 of 77

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Q31.
The Kozney-Carman equation, rewritten in terms of non-dimensional numbers gives (ฮ”P/pu² ) proportional to

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q32.
The equation given below is called the __________ .

a.

Colebrook formula

b.

Von-Karman equation

c.

Fanning equation

d.

none of these

Discuss
Answer: (b).Von-Karman equation
Q33.
Pick out the Blake-Plummer equation (valid for large Nส€โ‚‘) for fluid flow through beds of solids.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q34.
The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q35.
For flow through a venturi at a particular discharge, the correct relationships among heads at points X, Y, and Z are

a.

hโ‚ > hโ‚‚ < hโ‚ƒ

b.

hโ‚ > hโ‚‚ > hโ‚ƒ

c.

hโ‚‚ < hโ‚ < hโ‚ƒ

d.

hโ‚ < hโ‚‚ < hโ‚ƒ

Discuss
Answer: (a).hโ‚ > hโ‚‚ < hโ‚ƒ
Q36.
The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q37.
A pipe has a porous section of length L as shown in the figure. Velocity at the start of this section of Vโ‚€. If fluid leaks into the pipe through the porous section at a volumetric rate per unit area q(x/L)², what will be axial velocity in the pipe at any x ? Assume incompressible one dimensional flow i.e., no gradients in the radial direction.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q38.
A free jet of water of cross-sectional area 0.01 m² and a velocity of 20 m/s strikes a plate and then flows in a plane parallel to the plate as shown in the figure below. The horizontal component of the force on the support is

a.

200 N

b.

400 N

c.

2000 N

d.

4000 N

Discuss
Answer: (d).4000 N
Q39.
Which of the following denotes the effect of compressibility in fluid flow ?

a.

Weber number

b.

Mach number

c.

Euler number

d.

Reynolds number

Discuss
Answer: (b).Mach number
Q40.
Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.

a.

smaller than

b.

larger than

c.

same as

d.

twice

Discuss
Answer: (a).smaller than
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