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 15 of 67

Discover more Topics under Basic Chemical Engineering

Q141.
A good solvent used for absorption should not have very high

a.

viscosity

b.

vapor pressure

c.

freezing point

d.

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

Discuss
Answer: (d).all (a), (b) & (c)
Q142.
In a counter-current liquid extractor

a.

both liquids flow at fixed rate.

b.

both liquids can have any desired flow rate.

c.

only one of the liquids may be pumped at any desired rate.

d.

liquid's flow rate depends upon the temperature and pressure.

Discuss
Answer: (c).only one of the liquids may be pumped at any desired rate.
Q143.
Which of the following is an undesirable property for an absorbing solvent ?

a.

Low vapour pressure

b.

Low velocity

c.

Low freezing point

d.

None of these

Discuss
Answer: (d).None of these
Q144.
The wetted wall tower is used to determine

a.

individual mass transfer co-efficient (M.T.C.) in gaseous system.

b.

M.T.C. of individual components in a liquid-liquid system.

c.

M.T.C. of liquid in liquid-gas system.

d.

the overall M.T.C. of the system.

Discuss
Answer: (a).individual mass transfer co-efficient (M.T.C.) in gaseous system.
Q145.
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

a.

less

b.

more

c.

same

d.

unpredictable

Discuss
Answer: (a).less
Q146.
A minimum boiling azeotrope is exemplified by

a.

toluene-benzene

b.

acetone-carbon disulphide

c.

water-isobutyl alcohol

d.

none of these

Discuss
Answer: (b).acetone-carbon disulphide
Q147.
Which of the following solutions will follow Raoult's law most closely ?

a.

A solution of benzene, toluene and oxylene.

b.

35% solution of camphor in water.

c.

35% solution of NH₃ in water.

d.

A solution of polar organic compounds (not of homologs of a series).

Discuss
Answer: (a).A solution of benzene, toluene and oxylene.
Q148.
Use of raschig rings in place of crushed stones as packing in packed beds (other things being same)

a.

increases pressure drop, increases surface area.

b.

increases pressure drop, decreases surface area.

c.

decreases pressure drop, increases surface area.

d.

decreases pressure drop, decreases surface area.

Discuss
Answer: (c).decreases pressure drop, increases surface area.
Q149.
Critical humidity of a solid salt means the humidity

a.

above which it will always become damp.

b.

below which it will always stay dry.

c.

both (a) and (b).

d.

above Which it will always become dry and below which it will always stay damp.

Discuss
Answer: (c).both (a) and (b).
Q150.
The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are

a.

parallel

b.

straight

c.

both parallel and straight

d.

neither parallel nor straight

Discuss
Answer: (c).both parallel and straight
Page 15 of 67