Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that 21% excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion 21% excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Neither A nor B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Both A and B Neither A nor B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Contributes to its heating value Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 950 1150 550 750 950 1150 550 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of Light paraffinic fuel oils is equal to that of equivalent olefins Light paraffinic fuel oils is higher than that of equivalent olefins Light paraffinic fuel oils is lower than that of equivalent olefins N-paraffin is lower than that of iso-paraffins of the same compounds Light paraffinic fuel oils is equal to that of equivalent olefins Light paraffinic fuel oils is higher than that of equivalent olefins Light paraffinic fuel oils is lower than that of equivalent olefins N-paraffin is lower than that of iso-paraffins of the same compounds ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the lowest calorific value? Blast furnace gas Converter gas Refinery gas Gobar gas Blast furnace gas Converter gas Refinery gas Gobar gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest gross calorific value? Oil refinery gas Carburetted water gas Blast furnace gas Coke oven gas Oil refinery gas Carburetted water gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
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