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 6 of 67

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Q51.
Which of the following unit operations makes use of Thiele-Geddes equation ?

a.

Liquid-liquid extraction

b.

Solid-liquid extraction

c.

Multicomponent absorption with chemical reaction

d.

Multicomponent distillation.

Discuss
Answer: (d).Multicomponent distillation.
Q52.
As the reflux ratio in a distillation coloumn is increased from the minimum, the

a.

slope of the operating line in stripping section decreases.

b.

number of plates decreases very slowly first and then more and more rapidly.

c.

total cost first decreases and then increases.

d.

liquid flow increases while the vapor flow decreases for a system.

Discuss
Answer: (c).total cost first decreases and then increases.
Q53.
Absorption factor is defined as (where, S1 = slope of the operating line S2 = slope of the equilibrium curve)

a.

S2/S1

b.

S1/S2

c.

S1 - S2

d.

S1 x S2

Discuss
Answer: (b).S1/S2
Q54.
A plait point is the point on the solubility curve, where the tie line reduces to a point. What is the number of plait point for a ternery system containing two pairs of partially miscible liquids ?

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (a).0
Q55.
Which of the following remains constant during sensible cooling process ?

a.

Specific humidity

b.

Partial pressure of vapour

c.

Both (a) and (b)

d.

Neither (a) nor (b)

Discuss
Answer: (c).Both (a) and (b)
Q56.
Physical absorption is

a.

an irreversible phenomenon.

b.

a reversible phenomenon.

c.

accompanied by evolution of heat.

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q57.
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

a.

chemical properties

b.

physical properties

c.

degree of turbulence

d.

interfacial area

Discuss
Answer: (a).chemical properties
Q58.
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

a.

0.50

b.

0.60

c.

2

d.

1

Discuss
Answer: (a).0.50
Q59.
Fenske equation determines the

a.

maximum number of ideal plates.

b.

height of the distillation column.

c.

minimum number of theoretical plates.

d.

optimum reflux ratio.

Discuss
Answer: (c).minimum number of theoretical plates.
Q60.
The term "cooling range" in a cooling tower refers to the difference in the temperature of

a.

cold water leaving the tower and the wet bulb temperature of the surrounding air.

b.

hot water entering the tower and the wet bulb temperature of the surrounding air.

c.

hot water entering the tower and the cooled water leaving the tower.

d.

none of these

Discuss
Answer: (c).hot water entering the tower and the cooled water leaving the tower.
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