Fuels and Combustion If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be Low Very high, if the fuel is of low calorific value None of these High Low Very high, if the fuel is of low calorific value None of these High ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Highly caking coals Produce weak coke May damage the coke oven walls during carbonisation Produce strong coke Both B and C Produce weak coke May damage the coke oven walls during carbonisation Produce strong coke Both B and C ANSWER DOWNLOAD EXAMIANS APP
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 Oxidation Carbonisation Coalification Gasification Oxidation Carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. >100 15-25 25-80 0-15 >100 15-25 25-80 0-15 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal containing high amount of volatile matter will have 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 Low adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking coals are invariably Anthracites Semi-anthracites Lignites Bituminous coals Anthracites Semi-anthracites Lignites Bituminous coals ANSWER DOWNLOAD EXAMIANS APP