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Heat Transfer

Q1:

Pick out the wrong statement.

A Reciprocal of the resistance to heat flow is called thermal conductance.

B Unit of thermal conductance is W/°K.

C Thermal conductance of a wall of thickness 'L', thermal conductivity 'k' and heat flow area 'A' is kL/A.

D none of these.

ANS:C - Thermal conductance of a wall of thickness 'L', thermal conductivity 'k' and heat flow area 'A' is kL/A.

The wrong statement is: "Unit of thermal conductance is W/°K." The correct unit of thermal conductance is: b) W/°C So, the correct choice is: The unit of thermal conductance is W/°C.



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