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.
Which of the following binary systems is an example of a maximum boiling azeotrope ?

a.

Water-hydrochloric acid.

b.

Acetone-carbon disulphide.

c.

Water-ethyl alcohol.

d.

n-heptane-n-octane.

Discuss
Answer: (a).Water-hydrochloric acid.
Q102.
(NRe . NSc) is termed in mass transfer operation as the __________ number.

a.

Stanton

b.

Sherwood

c.

Peclet

d.

none of these

Discuss
Answer: (c).Peclet
Q103.
The binary diffusivity in gases and liquids vary respectively as

a.

T^3/2 and T

b.

T and T^3/2

c.

√T and T^3/2

d.

T^3/2 and √T

Discuss
Answer: (a).T^3/2 and T
Q104.
Pick out the correct statement.

a.

The slope of the stripping line is always less than unity.

b.

For a given separation in a binary distillation column, with increase in reflux ratio (above the minimum reflux ratio), the fixed cost of the distillation column first increases and then decreases.

c.

In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.

d.

Kremsor-Brown-Souder's equation is used to calculate the efficiency of a plate tower.

Discuss
Answer: (c).In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux.
Q105.
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.
Q106.
The McCabe Δ 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.
Q107.
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.
Q108.
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
Q109.
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'.
Q110.
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
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