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 2 of 67

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Q11.
Which of the following is not a unit of mass transfer co-efficient ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (d).D
Q12.
The surface renewal frequency in Danckwerts' model of mass transfer is given by (KL: mass transfer co-efficient)

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q13.
A distillation column separates 10000 kg/hr of a benzene-toluene mixture as shown in the figure below.
In the figure xF, xD and xW represent the weight fraction of benzene in the feed, distillate and residue respectively.

The reflux ratio is

a.

0.5

b.

0.6

c.

1.0

d.

2.0

Discuss
Answer: (b).0.6
Q14.
Which of the following is the correct ternery diagram for liquid-liquid extraction system comprising of two pairs partly soluble (e.g., chlorobenzene-water-methyl ethyl ketone system) ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q15.
If moisture content of solid on dry basis is X, then the same on wet basis is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q16.
If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively

a.

A

b.

B

c.

C

d.

None of these

Discuss
Answer: (b).B
Q17.
Below is given an equilibrium moisture curve of a substance. State which regions represent free moisture and unbound moisture respectively.

a.

II, III

b.

II, IV

c.

IV, III

d.

IV, II

Discuss
Answer: (a).II, III
Q18.
The following expression is

a.

differential distillation equation

b.

for NtoG in absorption for dilute mixture

c.

slope of q-line in McCabe-Thiele method

d.

for relative volatility

Discuss
Answer: (a).differential distillation equation
Q19.
Which of the following is the correct ternery diagram for liquid-liquid extraction system comprising of one pair partly soluble (e.g. water-benzene-acetic acid in which A-diluent, B - solvent and C - solute)?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q20.
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (b).B
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