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 11 of 67

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Q101.
Pick out the correct statement.

a.

Dialysis process is used for the production of fresh water from brine.

b.

Electrodylsis is used in the manufacture of NaOH.

c.

Electrodylsis is used for the refin-ning/purification of petrol.

d.

both (b) and (c).

Discuss
Answer: (b).Electrodylsis is used in the manufacture of NaOH.
Q102.
The McCabe ฮ” L law states that the

a.

molar heats of vaporisation of components are nearly equal.

b.

linear crystal growth rate depends on the degree of supersaturation.

c.

linear crystal growth rate does not depend on the crystal size.

d.

linear crystal growth rate depends on the crystal size.

Discuss
Answer: (c).linear crystal growth rate does not depend on the crystal size.
Q103.
Bollman extractor

a.

is a static bed leaching equipment.

b.

is used for extraction of oil from oilseed.

c.

is a centrifugal extractor.

d.

employs only counter-current extraction.

Discuss
Answer: (b).is used for extraction of oil from oilseed.
Q104.
The relation, Sc = Pr = 1, is valid, when the mechanism of __________ ansfer is same.

a.

heat and mass

b.

mass and momentum

c.

heat and momentum

d.

heat, momentum and mass

Discuss
Answer: (a).heat and mass
Q105.
A coalescer in a mixer-settler liquid-liquid extraction coloumn

a.

comprises of thin bed of substances of extended surface having high porosity.

b.

helps in increasing the bubble size entering the settler.

c.

helps in increasing the settling rate of the bubbles.

d.

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

Discuss
Answer: (d).all 'a', 'b', & 'c'.
Q106.
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will

a.

increase

b.

decrease

c.

remain same

d.

data insufficient, can't be predicted

Discuss
Answer: (a).increase
Q107.
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

a.

Sherwood

b.

Schmidt

c.

Peclet

d.

Stanton

Discuss
Answer: (a).Sherwood
Q108.
If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is

a.

0.31

b.

0.107

c.

0.017

d.

0.215

Discuss
Answer: (d).0.215
Q109.
Liquid diffusivity is of the order of __________ cm² /second.

a.

0.01

b.

0.1

c.

10โปโต to 10โปโถ

d.

> 1

Discuss
Answer: (c).10โปโต to 10โปโถ
Q110.
The solvent used in liquid extraction should not have high latent heat of vaporisation, because

a.

the pressure drop and hence the pumping cost will be very high.

b.

it cannot be recovered by distillation.

c.

its recovery cost by distillation may be prohibitatively high.

d.

it will decompose while recovering by distillation.

Discuss
Answer: (c).its recovery cost by distillation may be prohibitatively high.
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