Fuels and Combustion Efficient burning of anthracite coal requires Low preheat of air High excess air Fine grinding All of these Low preheat of air High excess air Fine grinding All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Tar yield increases Methane percentage in the coke oven gas increases Hydrogen percentage in the coke oven gas decreases Coke even gas yield increases Tar yield increases Methane percentage in the coke oven gas increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Remains same Increases Decreases May increase or decrease ; depends on the type of fuel Remains same Increases Decreases May increase or decrease ; depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of Light paraffinic fuel oils is lower than that of equivalent olefins Light paraffinic fuel oils is higher than that of equivalent olefins N-paraffin is lower than that of iso-paraffins of the same compounds Light paraffinic fuel oils is equal to that of equivalent olefins Light paraffinic fuel oils is lower than that of equivalent olefins Light paraffinic fuel oils is higher than that of equivalent olefins N-paraffin is lower than that of iso-paraffins of the same compounds Light paraffinic fuel oils is equal to that of equivalent olefins ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Atomising steam to fuel oil ratio in a burner should be around 3.5 0.5 2.5 1.5 3.5 0.5 2.5 1.5 ANSWER DOWNLOAD EXAMIANS APP
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