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!

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Heat Transfer Basics MCQs | Page 19 of 53

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Q181.
Pick out the wrong statement.

a.

Heat transfer by radiation can not occur across an absolute volume.

b.

In case of a shell and tube heat exchanger, the pressure drop through the shell is proportional to the number of times the fluid crosses the bundle between baffles.

c.

Propagation velocity for travel of heat radiation through vacuum is equal to the velocity of the light.

d.

The amount of heat involved in the condensation or vaporisation of 1 kg of a fluid is the same.

Discuss
Answer: (a).Heat transfer by radiation can not occur across an absolute volume.
Q182.
Which type of heat exchanger is preferred for heavy heat loads ?

a.

Double pipe

b.

Plate fine

c.

Series and parallel set of shell and tube

d.

None of these

Discuss
Answer: (c).Series and parallel set of shell and tube
Q183.
Prandtl number is given by

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (c).C
Q184.
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
Q185.
A graph between __________ is called Wilson plot.

a.

A

b.

B

c.

C

d.

D

Discuss
Answer: (a).A
Q186.
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
Q187.
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.
Q188.
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.
Q189.
Pick out the wrong statement.

a.

Reciprocal of the resistance to heat flow is called thermal conductance.

b.

Unit of thermal conductance is W/°K.

c.

Thermal conductance of a wall of thickness 'L', thermal conductivity 'k' and heat flow area 'A' is kL/A.

d.

none of these.

Discuss
Answer: (c).Thermal conductance of a wall of thickness 'L', thermal conductivity 'k' and heat flow area 'A' is kL/A.
Q190.
While the total emissivity of a perfect black body is unity, the same for a real body is

a.

0

b.

1

c.

> 1

d.

between 0 and 1

Discuss
Answer: (d).between 0 and 1
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