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 66 of 67

Discover more Topics under Basic Chemical Engineering

Q651.
At 750°K and 1 atm, the approximate value of Schmidt number for air is

a.

0.01

b.

0.1

c.

1

d.

10

Discuss
Answer: (b).0.1
Q652.
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

a.

surface renewal

b.

film

c.

penetration

d.

none of these.

Discuss
Answer: (b).film
Q653.
Which of the following is used for the concentration of rubber latex ?

a.

Agitated film evaporator

b.

Long tube vertical evaporator

c.

Short tube evaporator

d.

Calendria

Discuss
Answer: (a).Agitated film evaporator
Q654.
Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

a.

cooled

b.

humidified

c.

both (a) & (b)

d.

dehumidified

Discuss
Answer: (b).humidified
Q655.
For absorbing a sparingly soluble gas in a liquid, the

a.

gas side co-efficient should be increased.

b.

liquid side coefficient should be increased.

c.

gas side co-efficient should be decreased.

d.

liquid side co-efficient should be decreased.

Discuss
Answer: (b).liquid side coefficient should be increased.
Q656.
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

a.

10-15

b.

30-40

c.

70-80

d.

90-100

Discuss
Answer: (a).10-15
Q657.
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

a.

decreases

b.

increases

c.

remains unchanged

d.

may increase or decrease, depends on the system.

Discuss
Answer: (b).increases
Q658.
The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the

a.

differential heat of adsorption.

b.

heat of wetting.

c.

integral heat of adsorption.

d.

none of these.

Discuss
Answer: (a).differential heat of adsorption.
Q659.
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

a.

K ∝ D

b.

K ∝ √D

c.

K ∝ D^1.5

d.

K ∝ D²

Discuss
Answer: (b).K ∝ √D
Q660.
Desulphurisation of petrol is done in a

a.

Bollman extractor

b.

rotating disc extractor

c.

packed extraction column

d.

plate type extraction column

Discuss
Answer: (b).rotating disc extractor
Page 66 of 67