The unit of overall coefficient of heat transfer is
A. kcal/m2
B. kcal/hr °C
C. kcal/m2 hr °C
D. kcal/m hr °C
Answer: Option C
Solution(By Examveda Team)
Kilocalorie per hour per square meter per degree Celsius (kcal/m2 hr °С) is a metric unit of the heat transfer coefficient. The heat transfer coefficient has SI units in watts per squared meter kelvin: $$\frac{{\text{W}}}{{{{\text{m}}^2}{\text{K}}}}$$ . Heat transfer coefficient is the inverse of thermal insulance.Related Questions on Heat and Mass Transfer
The heat is transferred by conduction, convection and radiation in
A. Melting of ice
B. Boiler furnaces
C. Condensation of steam in condenser
D. None of these
Heat is transferred by all three modes of transfer, viz. conduction, convection and radiation in
A. Electric heater
B. Steam condenser
C. Boiler
D. Refrigerator condenser coils
The radiation emitted by a black body is known as
A. Black radiation
B. Full radiation
C. Total radiation
D. All of these
Join The Discussion