Mass Transfer MCQs

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

Mass Transfer MCQs | Page 16 of 67

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Q151.
Pick out the wrong statement.

a.

Critical moisture content is not a property of the material itself.

b.

A sharp increase in pressure drop gives an indication of the flooding in a distillation column.

c.

Separation of components is not possible in liquid extraction, if selectivity is unity.

d.

Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum.

Discuss
Answer: (d).Dehydration of ethyl alcohol is most economically done by molecular distillation at very high vacuum.
Q152.
Only small amount of evaporation of water produces large cooling effects because of its

a.

large latent heat

b.

low viscosity

c.

small latent heat

d.

none of these

Discuss
Answer: (a).large latent heat
Q153.
The most common packing used in industrial operations is __________ rings.

a.

raschig

b.

lessing

c.

cross-partition

d.

single spiral

Discuss
Answer: (a).raschig
Q154.
When the feed to a distillation column is a saturated liquid, slope of the feed line is

a.

zero

b.

unity

c.

infinity

d.

none of these

Discuss
Answer: (c).infinity
Q155.
Leaching of sugar from sugar beets is done by

a.

hot water

b.

hexane

c.

dilute H₂SO₄

d.

lime water

Discuss
Answer: (a).hot water
Q156.
Positive deviation from Raoult's law means a mixture whose total pressure is

a.

greater than that computed for ideality.

b.

less than that computed for ideality.

c.

less than the sum of the vapour pressure of the components.

d.

none of these.

Discuss
Answer: (a).greater than that computed for ideality.
Q157.
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

a.

increases

b.

decreases

c.

decreases linearly

d.

remains unaffected

Discuss
Answer: (a).increases
Q158.
Schmidt number is given by

a.

μ / ρDᴀʙ

b.

Re.Pe

c.

Sh x Pe

d.

Re/Pe

Discuss
Answer: (a).μ / ρDᴀʙ
Q159.
The caking of crystals can be prevented by

a.

maintaining high critical humidity.

b.

maintaining low critical humidity.

c.

coating the product with inert material.

d.

both (a) and (c)

Discuss
Answer: (d).both (a) and (c)
Q160.
Prandtl number for water at 20°C is about

a.

7

b.

70

c.

0.7

d.

150.

Discuss
Answer: (a).7
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