![The concept of overall coefficient of heat transfer is used in heat transfer problems of](https://www.gkseries.com/blog/wp-content/uploads/2022/04/The-concept-of-overall-coefficient-of-heat-transfer-is-used-in-heat-transfer-problems-of.png)
Q. The concept of overall coefficient of heat transfer is used in heat transfer problems of
A. conduction
B. convection
C. radiation
D. conduction and convection
Answer: conduction and convection
A. conduction
B. convection
C. radiation
D. conduction and convection
Answer: conduction and convection
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