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mechanical engineering heat transfer refrigeration and air conditioning
1. A steam pipe is to be lined with two layers of insulating materials of different thermal conductivities. For the minimum heat transfer,
(A): one could place either insulation on either side
(B): one should take into account the steam temperature before deciding as to which insulation is put where
(C): the better insulation must be put inside
(D): the better insulation must be put outside
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