Fuels and Combustion One kg of carbon for theoretically complete combustion requires __________ kg of air. 11.5 12 23 0.5 11.5 12 23 0.5 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 650 700 to 850 100 to 150 350 to 450 550 to 650 700 to 850 100 to 150 350 to 450 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains Greater percentage of ash More carbon Less volatile matter All of these Greater percentage of ash More carbon Less volatile matter All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? It can not burn low grade coal None of these It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers It can not burn low grade coal None of these It achieves higher fuel combustion efficiency Less heat transfer surface area is required in boilers ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will Not change Increase or decrease depending on the fuel type Decrease Increase Not change Increase or decrease depending on the fuel type Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard pitch is used for making Pulverised fuel Perfumes Insecticides Plastics Pulverised fuel Perfumes Insecticides Plastics ANSWER DOWNLOAD EXAMIANS APP