Heat Transfer Basics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Transfer Basics, 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 Heat Transfer Basics 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 Heat Transfer Basics mcq questions that explore various aspects of Heat Transfer Basics problems. Each MCQ is crafted to challenge your understanding of Heat Transfer Basics 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 Heat Transfer Basics 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 Heat Transfer Basics. 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 Heat Transfer Basics knowledge to the test? Let's get started with our carefully curated MCQs!

Heat Transfer Basics MCQs | Page 3 of 53

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Q21.
Prandtl number is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q22.
For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q23.
A graph between __________ is called Wilson plot.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q24.
What is the geometric mean of two heat transfer areas A1 and A2 ?

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q25.
Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately

a.

32

b.

37

c.

45

d.

50

Discuss
Answer: (a).32
Q26.
In a heat exchanger, floating head is provided to

a.

facilitate cleaning of the exchanger.

b.

increase the heat transfer area.

c.

relieve stresses caused by thermal expansion.

d.

increase log mean temperature gradient.

Discuss
Answer: (c).relieve stresses caused by thermal expansion.
Q27.
Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the

a.

maximum resistance in the series.

b.

sum of all resistances.

c.

average of all resistances.

d.

minimum resistance presents in the series.

Discuss
Answer: (b).sum of all resistances.
Q28.
Double pipe heat exchangers are preferably useful, when

a.

high viscosity liquid is to be cooled.

b.

requirement of heat transfer area is low.

c.

overall heat transfer co-efficient is very high.

d.

a corrosive liquid is to be heated.

Discuss
Answer: (b).requirement of heat transfer area is low.
Q29.
Removal of __________ heat is involved in the condensation of a vapor under saturated conditions.

a.

super

b.

sensible

c.

latent

d.

both(b) & (c)

Discuss
Answer: (b).sensible
Q30.
In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger.

a.

once

b.

twice

c.

thrice

d.

four times

Discuss
Answer: (b).twice
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