Mechanical Operations MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Mechanical Operations, 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 Mechanical Operations 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 Mechanical Operations mcq questions that explore various aspects of Mechanical Operations problems. Each MCQ is crafted to challenge your understanding of Mechanical Operations 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 Mechanical Operations 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 Mechanical Operations. 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 Mechanical Operations knowledge to the test? Let's get started with our carefully curated MCQs!

Mechanical Operations MCQs | Page 2 of 46

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Q11.
__________ mean diameter of particles is given by

a.

Mass

b.

volume

c.

Arithmetic

d.

Volume surface

Discuss
Answer: (b).volume
Q12.
The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle).

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q13.
Velocity of a small particle of diameter 'Dₚ' at a distance 'r' from the rotational axis of a cyclone rotating at an angular speed 'ω' is given by (the other symbols are as per standard notation)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q14.
Pick out the correct statement.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q15.
The cummulative mass fraction of particles smaller than size dⱼ for a collection of Nᵢ particles of diameter dᵢ and mass mi (i = 1, 2, 3, ...... ∞) is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
Q16.
Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle).

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q17.
What is the reduction ratio in a fine crushing operation having following feed and product sizes?

a.

0.5

b.

2

c.

5

d.

10

Discuss
Answer: (b).2
Q18.
The value of 'angle of nip' is generally about

a.

16°

b.

32°

c.

52°

d.

64°

Discuss
Answer: (b).32°
Q19.
Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills.

a.

metalliferrous ores

b.

non-metallic ores

c.

basic slags

d.

asbestos & mica

Discuss
Answer: (a).metalliferrous ores
Q20.
Sulphuric acid mist is arrested by using a __________ scrubber.

a.

packed wet

b.

hollow wet

c.

venturi

d.

co-current

Discuss
Answer: (c).venturi
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