Fuels and Combustion High rate of heating of coke ovens 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 May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not endothermic? Reforming Cracking Partial oxidation Gasification Reforming Cracking Partial oxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coalification means the Underground gasification of coal Direct hydrogenation of coal Process of conversion of lignite into anthracite Complete combustion of coal Underground gasification of coal Direct hydrogenation of coal Process of conversion of lignite into anthracite Complete combustion of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Clinkering tendency Caking tendency Coking tendency Size stability Clinkering tendency Caking tendency Coking tendency Size stability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Anthracite coal Ignites more easily than bituminous coal Is essentially a coking coal Contains more volatile matter than bituminous coal Burns with short, bluish, yellow-tipped flame producing very little smoke Ignites more easily than bituminous coal Is essentially a coking coal Contains more volatile matter than bituminous coal Burns with short, bluish, yellow-tipped flame producing very little smoke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas burns with an yellowish flame, because of the presence of CO₂ H₂ CH₄ NH₃ CO₂ H₂ CH₄ NH₃ ANSWER DOWNLOAD EXAMIANS APP
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