Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Yield of ammonia is less Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Aromatic content of tar is low Yield of ammonia is less Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Aromatic content of tar is low ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Both A and B Contributes to its heating value Affects the quality of steel produced as cracks develop on the surface while rolling the steel Neither A nor B Both A and B Contributes to its heating value Affects the quality of steel produced as cracks develop on the surface while rolling the steel Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures Remain unchanged Decrease May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease May increase or decrease ; depends on the quantity of products of combustion Increase ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking coal is desirable for Coke making Burning on firebars Burning on travelling grate All of these Coke making Burning on firebars Burning on travelling grate All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High temperature in gasification of coal favours High production of CO₂ Both B and C High production of CO Low production of CO₂ High production of CO₂ Both B and C High production of CO Low production of CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Mineral matter content Both B and C Ash content Caking index Mineral matter content Both B and C Ash content Caking index ANSWER DOWNLOAD EXAMIANS APP
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