Preheating of combustion air is done to ___________________? – McqOptions

MCQOPTIONS

1.	Preheating of combustion air is done to ___________________?
A.	Increase the adiabatic flame temperature
B.	Increase the calorific value of the fuel
C.	Complete the combustion of fuel
D.	Reduce its requirement for effecting the complete combustion
Answer» B. Increase the calorific value of the fuel

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