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Question
Pick out the correct statement.
Options:
A .  1 kcal/hr.m.°C is equal to 1 BTU/hr. ft.°F
B .  In steady state heat conduction, the only property of the substance which determines the temperature distribution, is the thermal conductivity
C .  In unsteady state heat conduction, heat flows in the direction of temperature rise
D .  In heat transfer by forced convection, Grashoff number is very important
Answer: Option B

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