Arithmetic mean area can be used in heat transfer problem to calculate – McqOptions

MCQOPTIONS

1.	Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is ____________________?
A.	Thin walled having the value of Ao Ai/< 2
B.	Thick walled
C.	Having the value of Ao/Ai > 2
D.	Both B. and C.
Answer» B. Thick walled

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