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Question
A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?
Options:
A .  The better insulation material should be put just next to pipe (i.e., inside)
B .  The better insulating material should be put outside
C .  Either of the insulating material could be put on either side
D .  Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)
Answer: Option A
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
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