24) Thermal conductivity of air with rise in temperature
Answer is:
increases
Related Heat transfer MCQ with Answers
Answer is:
conduction and convection
Explanation:
The concept of overall coefficient of heat transfer is used in heat transfer problems of conduction and convection heat transfer.
Answer is:
cm (thickness)
Answer is:
all of the above.
Explanation:
The amount of heat flow through a body by conduction is
* directly proportional to the surface area of the body
* directly proportional to the temperature difference on the two faces of the body
* inversely proportional to the thickness of the body