Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Semi-bituminous coal Coke Aanthracite Bituminous coal Semi-bituminous coal Coke Aanthracite Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. Free carbon content in tar Difference in gross & net calorific value of the coke oven gas Yield of ammonia present in coke oven gas Yield percentage of coke Free carbon content in tar Difference in gross & net calorific value of the coke oven gas Yield of ammonia present in coke oven gas Yield percentage of coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is Endothermic Exothermic Autocatalytic Catalytic Endothermic Exothermic Autocatalytic Catalytic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke should have very low Hardness & strength Sulphur & phosphorous content Porosity Fusion point of its ash Hardness & strength Sulphur & phosphorous content Porosity Fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal containing large quantity of __________ are difficult to wash. Free impurities Volatile matter Ash Inherent mineral matter Free impurities Volatile matter Ash Inherent mineral matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower High exit flue gas temperature from the furnace Intermittant and uncontrolled combustion of the fuel Enhanced sensible heat loss in the flue gas ANSWER DOWNLOAD EXAMIANS APP
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