Fuels and Combustion A good coking coal should have high __________ content. Sulphur & phosphorus Moisture None of these Ash Sulphur & phosphorus Moisture None of these Ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the Supply of excess fuel None of these Supply of excess air Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess fuel None of these Supply of excess air Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high __________ content, would ignite most easily. Volatile matter Ash Fixed carbon Oxygen Volatile matter Ash Fixed carbon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Complete the combustion of fuel Increase the adiabatic flame temperature Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion Complete the combustion of fuel Increase the adiabatic flame temperature Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal during storage does not decrease its Calorific value None of these Oxygen content Caking power Calorific value None of these Oxygen content Caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for All of these Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash ANSWER DOWNLOAD EXAMIANS APP
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