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 D)Both (B) and (C)

Question

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)

Quizplus · Accepted Answer

The arithmetic mean area is applicable for thin-walled cylinders where the ratio of outer to inner radius (Ao/Ai) is less than 2, simplifying the calculation of heat flow by conduction.

Arithmetic Mean Area Can Be Used in Heat Transfer Problem