Heat Radiation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Heat Radiation, a fundamental topic in the field of Heat Transfer. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Heat Radiation 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 Radiation mcq questions that explore various aspects of Heat Radiation problems. Each MCQ is crafted to challenge your understanding of Heat Radiation principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Heat Transfer tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Heat Radiation MCQs are your pathway to success in mastering this essential Heat Transfer topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Heat Radiation. 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 Radiation knowledge to the test? Let's get started with our carefully curated MCQs!

Heat Radiation MCQs | Page 18 of 21

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Q171.
What is the symbol used for specific heat?

a.

C S

b.

C R

c.

C P

d.

C M

Discuss
Answer: (c).C P
Q172.
What is the symbol used for convective film coefficient?

a.

v

b.

h

c.

σ

d.

µ

Discuss
Answer: (b).h
Q173.
What is the symbol used for kinematic viscosity?

a.

v

b.

λ

c.

µ

d.

σ

Discuss
Answer: (a).v
Q174.
What is the symbol used for coefficient of volumetric expansion?

a.

λ

b.

µ

c.

δ

d.

β

Discuss
Answer: (d).β
Q175.
Which of the followings is a wrong statement?
The shape factor is equal to one

a.

For any surface completely enclosed by another surface

b.

For infinite parallel planes radiating only to each other

c.

For a flat or convex surface with respect to itself

d.

Inside cylinder to outer cylinder of a long co-axial cylinder

Discuss
Answer: (d).Inside cylinder to outer cylinder of a long co-axial cylinder
Q176.
Establish a relation for the shape factor of cylindrical cavity with respect to itself of depth h and diameter d. The cavity is closed on its outer surface with a flat plate

a.

4 h/4 h + d

b.

4 h + d/h

c.

4 h + d/4 h

d.

h/4 h + d

Discuss
Answer: (a).4 h/4 h + d
Q177.
The reciprocity theorem states that (Where symbols have their usual meanings)

a.

F 12 = F 21

b.

A 1 F 12 = A 2 F 21

c.

A 1 F 21 = A 2 F 12

d.

A 2 F 21 = A 1 F 12

Discuss
Answer: (b).A 1 F 12 = A 2 F 21
Q178.
Two radiating surface A 1 = 6 m² and A 2 = 4 m² have shape factor F 12 = 0.1. Then the shape factor F 21 will be

a.

0.12

b.

0.18

c.

0.15

d.

0.10

Discuss
Answer: (c).0.15
Q179.
What is the value of shape factor for two infinite parallel surfaces separated by a distance x?

a.

0

b.

1

c.

x

d.

Infinity

Discuss
Answer: (b).1
Q180.
What is the shape factor of a sphere of diameter d inside a cubical box of length l = d?

a.

π/6

b.

2 π/6

c.

π/3

d.

π/4

Discuss
Answer: (a).π/6
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