Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Heat transfer rate to the stock in the furnace Calorific value of the fuel Speed of combustion of fuel Flame temperature achieved Heat transfer rate to the stock in the furnace Calorific value of the fuel Speed of combustion of fuel Flame temperature achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains More carbon Greater percentage of ash Less volatile matter All of these More carbon Greater percentage of ash Less volatile matter All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of furnace oil is about __________ Kcal/kg. 10000 15000 20000 5000 10000 15000 20000 5000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal. Slow & high Slow & low Fast & slow Fast & high Slow & high Slow & low Fast & slow Fast & high ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Contributes to its heating value Both A and B Neither A nor B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Both A and B Neither A nor B Affects the quality of steel produced as cracks develop on the surface while rolling the steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Narrower limit of inflammability Lower theoretical flame temperature Higher calorific value Lower ignition temperature Narrower limit of inflammability Lower theoretical flame temperature Higher calorific value Lower ignition temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS