Fuels and Combustion The function of secondary combustion air is to Completely burn the volatile matter Burn the lumpy coal Pneumatically convey the pulverised coal None of these Completely burn the volatile matter Burn the lumpy coal Pneumatically convey the pulverised coal None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the High oxygen in flue gas Complete combustion Incomplete combustion None of these High oxygen in flue gas Complete combustion Incomplete combustion None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is Neither A nor B No possibility of obtaining complete combustion at high temperature Both A & B Always loss of heat from the flame Neither A nor B No possibility of obtaining complete combustion at high temperature Both A & B Always loss of heat from the flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of a gas of composition CO₂ = 20%, H₂ = 50%, CH₄ = 30%, is y. If the composition of gas is changed to H₂ = 50%, CH₄ = 30%, CO₂ = 10%, N₂ = 10%, then the calorifice value will be Y 1.8 y 0.95 y 1.05 y Y 1.8 y 0.95 y 1.05 y ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in Either A or C without gain or loss of heat Oxygen Either A or B Air Either A or C without gain or loss of heat Oxygen Either A or B Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame velocity? H₂ CH₄ C₂H₆ CO H₂ CH₄ C₂H₆ CO ANSWER DOWNLOAD EXAMIANS APP
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