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 56 of 67

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Q551.
With increase in the concentration of the adsorbate, the integral heat of adsorption

a.

increases.

b.

decreases.

c.

remains unchanged.

d.

may increase or decrease ; depends on the type of adsorbate.

Discuss
Answer: (b).decreases.
Q552.
Small dia distillation column can be a

a.

packed column

b.

sieve tray

c.

bubble cap

d.

any of these

Discuss
Answer: (a).packed column
Q553.
If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

a.

0

b.

1

c.

< 1

d.

> 1

Discuss
Answer: (b).1
Q554.
An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is

a.

0.048

b.

0.079

c.

0.122

d.

0.152

Discuss
Answer: (d).0.152
Q555.
__________ column is used in gas absorption process.

a.

Wetted wall

b.

Seive/perforated tray

c.

Bubble cap

d.

Packed

Discuss
Answer: (d).Packed
Q556.
The relative saturation of an unsaturated mixture of gas and vapor is independent of the

a.

nature of the vapor.

b.

temperature of the mixture.

c.

composition of the mixture.

d.

none of these.

Discuss
Answer: (d).none of these.
Q557.
The adiabatic saturation curve for a vapour-gas mixture is

a.

straight line.

b.

slightly concave upward.

c.

slightly concave downward.

d.

none of these.

Discuss
Answer: (b).slightly concave upward.
Q558.
Pick out the wrong statement.

a.

Cellulose acetate membranes are used in dialysis process.

b.

Elutriation process refers to when the soluble material is largely concentrated on the surface of an insoluble solid and is simply washed off by the solvent.

c.

'Cascade' means a group of stages interconnected so that various streams flow from one to another.

d.

Zirconia probe is used for the humidity measurement.

Discuss
Answer: (d).Zirconia probe is used for the humidity measurement.
Q559.
The value of Nแด€/(Nแด€ + Nส™), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

a.

1

b.

โˆž

c.

0.5

d.

2

Discuss
Answer: (b).โˆž
Q560.
Drift in a cooling tower is

a.

the water entrained by the circulating air.

b.

dependent on the water lost by evaporation.

c.

desirable.

d.

all (a), (b) & (c).

Discuss
Answer: (a).the water entrained by the circulating air.
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