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 59 of 67

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Q581.
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

a.

mass transfer co-efficient.

b.

thermal diffusivity.

c.

kinematic viscosity.

d.

volumetric diffusivity.

Discuss
Answer: (a).mass transfer co-efficient.
Q582.
Equilibrium moisture of a solid is equal to the total moisture minus free moisture. Which of the following substances will have maxi-mum equilibrium moisture ?

a.

Anthracite coal

b.

Rag paper

c.

Bamboo

d.

Inorganic solids

Discuss
Answer: (c).Bamboo
Q583.
Which of the following is a suitable absorbent for removal of H₂S from natural gas ?

a.

Vetrocoke solution

b.

Monoethanol amine (MEA)

c.

Dilute

d.

Hot water

Discuss
Answer: (b).Monoethanol amine (MEA)
Q584.
Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are

a.

1

b.

8

c.

9

d.

10

Discuss
Answer: (c).9
Q585.
Schimdt number and Lewis number for pure air at atmospheric conditions are respectively

a.

< 1 and ≈ 1

b.

1 and 0

c.

>1 and ≈ 1

d.

0 and ≈ 1

Discuss
Answer: (a).< 1 and ≈ 1
Q586.
Molecular diffusion is caused by the

a.

transfer of molecules from low concentration to high concentration region.

b.

thermal energy of the molecules.

c.

activation energy of the molecules.

d.

potential energy of the molecules.

Discuss
Answer: (b).thermal energy of the molecules.
Q587.
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

a.

operating

b.

total

c.

minimum

d.

maximum permissible

Discuss
Answer: (b).total
Q588.
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

a.

viscosity

b.

density

c.

solubility

d.

relative volatility

Discuss
Answer: (c).solubility
Q589.
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.

a.

molecular

b.

extractive

c.

steam

d.

simple

Discuss
Answer: (d).simple
Q590.
Which of the following equipments is not used in liquid-liquid extraction ?

a.

Pachuka tank

b.

Agitated vessels

c.

Centrifugal extractors

d.

Packed towers

Discuss
Answer: (a).Pachuka tank
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