Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Unsaturated hydrocarbons All of these Methane Hydrogen Unsaturated hydrocarbons All of these Methane Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr. 2.5 20 10 0.5 2.5 20 10 0.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Reduces its calorific value Is not undersirable Badly affects the quality of steel Increases its caking power Reduces its calorific value Is not undersirable Badly affects the quality of steel Increases its caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter can be used to determine the __________ of the coal. Both A & B Neither A nor B Sulphur content Calorific value Both A & B Neither A nor B Sulphur content Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation H₂ content in the coke oven gas is more Yield of ammonia is less Aromatic content of tar is low Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Yield of ammonia is less Aromatic content of tar is low Calorific value of the coke oven gas is lower ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing CO₂ CO H₂O O₂ CO₂ CO H₂O O₂ ANSWER DOWNLOAD EXAMIANS APP
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