Fuels and Combustion Froth floatation is used for Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) All of these Washing lump coal (> 80 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) All of these Washing lump coal (> 80 mm size) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cooling medium used in dry quenching of coke is Nitrogen Carbon dioxide Phenolic water Air Nitrogen Carbon dioxide Phenolic water Air 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 Fuel consumption in coke making can be reduced by Preheating, blending and de-ashing the coal All of these Dry quenching of coke Stamped charging of coal Preheating, blending and de-ashing the coal All of these Dry quenching of coke Stamped charging of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Purity of coke means that, it is high in carbon and low in Volatiles Moisture Iron Ash Volatiles Moisture Iron Ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Furnace oil Lump coal (fixed on chain grate) Coke oven gas Pulverised coal Furnace oil Lump coal (fixed on chain grate) Coke oven gas Pulverised coal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS