Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Coalification Gasification Carbonisation Oxidation Coalification Gasification Carbonisation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 1-2 10-15 30-33 22-26 1-2 10-15 30-33 22-26 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Has higher calorific value Has low quantity of mineral matter Is not subjected to washing Is harder and stronger Has higher calorific value Has low quantity of mineral matter Is not subjected to washing Is harder and stronger ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coals used for the generation of producer gas should have Low fusion point of ash High volatile matter content High caking index Very low ash content (8-10%) Low fusion point of ash High volatile matter content High caking index Very low ash content (8-10%) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Overfire burning in a furnace is a phenomenon characterised by the Supply of excess fuel Supply of excess air None of these Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air Supply of excess fuel Supply of excess air None of these Burning of carbon monoxide and other incombustibles in upper zone of furnace by supplying more air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fertilisers is produced in the by-products recovery (from coke oven gas) plant attached to an integrated steel plant? Ammonium sulphate None of these Ammonium phosphate Ammonium nitrate Ammonium sulphate None of these Ammonium phosphate Ammonium nitrate ANSWER DOWNLOAD EXAMIANS APP
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