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 30 of 67

Discover more Topics under Basic Chemical Engineering

Q291.
Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and

a.

humidified with wet bulb temperature decreasing.

b.

humidified at constant wet bulb temperature.

c.

dehumidified.

d.

none of these

Discuss
Answer: (a).humidified with wet bulb temperature decreasing.
Q292.
Humid volume, at a given temperature is a/an __________ function of humidity.

a.

inverse

b.

exponential

c.

linear

d.

logarithmic

Discuss
Answer: (c).linear
Q293.
The Schmidt number which is defined as, ฮผ/ฯ D, is the ratio of the

a.

momentum diffusivity to the mass dif-fusivity.

b.

thermal diffusivity to the mass diffusivity.

c.

momentum diffusivity to the thermal diffusivity.

d.

none of these.

Discuss
Answer: (a).momentum diffusivity to the mass dif-fusivity.
Q294.
If f is defined as above, then which of the following applies to a feed at dew point ?

a.

f = 1

b.

f < 1

c.

f > 1

d.

0 < f < 1

Discuss
Answer: (a).f = 1
Q295.
The falling rate period in the drying of a solid is characterised by

a.

increase in rate of drying.

b.

increasing temperatures both on the surface and within the solid.

c.

decreasing temperatures.

d.

none of these.

Discuss
Answer: (b).increasing temperatures both on the surface and within the solid.
Q296.
In which of the following unit operations, the selectivity is an important parameter ?

a.

Distillation

b.

Solvent extraction

c.

Absorption

d.

None of these

Discuss
Answer: (b).Solvent extraction
Q297.
Which of the following is an undesirable characteristic for the solvent used in gas absorption ?

a.

Low vapor pressure

b.

Low viscosity

c.

High gas solubility

d.

None of these

Discuss
Answer: (d).None of these
Q298.
Which of the following equipments is not used for liquid dispersion ?

a.

Wetted wall towers

b.

Packed towers

c.

Venturi scrubbers

d.

Agitated vessels

Discuss
Answer: (d).Agitated vessels
Q299.
__________ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

a.

Sherwood

b.

Stanton

c.

Lewis

d.

Peclet

Discuss
Answer: (c).Lewis
Q300.
The expression, y(1 - x)/x(1 - y) is for

a.

absorption factor

b.

relative volatility

c.

selectivity

d.

Murphree efficiency

Discuss
Answer: (b).relative volatility
Page 30 of 67