Fuels and Combustion The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be 27.6 23 42.9 47.3 27.6 23 42.9 47.3 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion One kg of carbon for theoretically complete combustion requires __________ kg of air. 0.5 23 12 11.5 0.5 23 12 11.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Mineral matter content Caking index Ash content Both B and C Mineral matter content Caking index Ash content Both B and C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 550 to 650 100 to 150 350 to 450 700 to 850 550 to 650 100 to 150 350 to 450 700 to 850 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Complete the combustion of fuel Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Complete the combustion of fuel Increase the calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 50 5000 1000 10000 50 5000 1000 10000 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS