Fuels and Combustion High rate of heating of coke ovens May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke Increases the time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Adiabatic flame temperature of a fuel is dependent on the initial temperature of Both A & B Neither A nor B Fuel Air Both A & B Neither A nor B Fuel Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal containing high amount of volatile matter will have Low adiabatic flame temperature Low ignition temperature Very little ash content High fusion point of its ash Low adiabatic flame temperature Low ignition temperature Very little ash content High fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in None of these Long flame Condensation of water vapour from the fuel gas Heat losses None of these Long flame Condensation of water vapour from the fuel gas Heat losses ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) GCV at constant volume NCV at constant volume NCV at constant pressure GCV at constant pressure GCV at constant volume NCV at constant volume NCV at constant pressure GCV at constant pressure ANSWER DOWNLOAD EXAMIANS APP