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Mechanical Engineering · Q74

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 74

Q74

Which of the following is the case of heat transfer by radiation?

A.
Blast furnace
B.
Heating of building
C.
Cooling of parts in furnace
D.
Heat received by a person from fireplace
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
Radiation refers to the emission of energy in rays or waves. Heat moves through space as energy waves. It is the type of heat one feels when sitting in front of a fireplace or around a campfire.