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 7 of 67

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Q61.
On addition of solute in the solvent, the __________ of the solution decreases.

a.

boiling point

b.

freezing point

c.

vapour pressure

d.

both (b) and (c)

Discuss
Answer: (d).both (b) and (c)
Q62.
Which is the controlling factor for a drum drier?

a.

Diffusion

b.

Heat transfer

c.

Both (a) and (b)

d.

Neither (a) nor (b)

Discuss
Answer: (b).Heat transfer
Q63.
Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty ?

a.

Sieve plate column

b.

Bubble cap column

c.

Randomly packed column

d.

Wetted wall column

Discuss
Answer: (d).Wetted wall column
Q64.
The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

a.

natural draft cooling tower

b.

induced draft cooling tower

c.

spray chamber

d.

none of these

Discuss
Answer: (c).spray chamber
Q65.
Chemisorption (chemical adsorption) is

a.

same as "Van der Waals" adsorption.

b.

characterised by adsorption of heat.

c.

an irreversible phenomenon.

d.

a reversible phenomenon.

Discuss
Answer: (c).an irreversible phenomenon.
Q66.
The rate of solid-liquid extraction is limited by the

a.

phase change of the solute as it dissolves in the solvent.

b.

diffusion of the solute through the solvent in the pores to the outside of the particle.

c.

diffusion of the solute from the solution in contact with the particle to the main bulk of the solution.

d.

all 'a', 'b' & 'c'.

Discuss
Answer: (d).all 'a', 'b' & 'c'.
Q67.
Raoult's law applies to the

a.

all liquid solutions

b.

non-ideal solution only.

c.

non-volatile solute.

d.

solvents.

Discuss
Answer: (d).solvents.
Q68.
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

a.

low pressure drop and high hold up.

b.

high pressure drop and low hold up.

c.

low pressure drop and low hold up.

d.

high pressure drop and high hold up.

Discuss
Answer: (c).low pressure drop and low hold up.
Q69.
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

a.

100

b.

> 100

c.

< 100

d.

none of these

Discuss
Answer: (b).> 100
Q70.
Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is

a.

25%

b.

50%

c.

70%

d.

90%

Discuss
Answer: (b).50%
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