Question

Which of the following is an example of forced convection?

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Chilling effect of cold wind on a warm body

Cooling of billets in the atmosphere

Heat exchange on cold and warm pipes

Flow of refrigerant in evaporator tubes

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Answer 1

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Answer 2

Forced convection is the process when external sources like fan and pumps are inducing convection.

• So from all these given options last one would be answer because flow of refrigerant is caused by evaporator tubes which is the main motive of forced convection as it is inducing by evaporator tube one.

Hence, the correct option for this question is flow of refrigerant in evaporator tubes.