Fuels and Combustion Which of the following gaseous fuels has the lowest calorific value? Gobar gas Blast furnace gas Refinery gas Converter gas Gobar gas Blast furnace gas Refinery gas Converter gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air. Increases Remains same May increase or decrease depending on the type of fuel Decreases Increases Remains same May increase or decrease depending on the type of fuel Decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Semi-bituminous coal containing 25% ash and 20% volatile matter Anthracite containing 10% volatile matter and 8% ash Coke breeze containing 25% ash and 2% volatile matter Bituminous coal containing 20% ash and 25% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Anthracite containing 10% volatile matter and 8% ash Coke breeze containing 25% ash and 2% volatile matter Bituminous coal containing 20% ash and 25% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The function of secondary combustion air is to Pneumatically convey the pulverised coal None of these Burn the lumpy coal Completely burn the volatile matter Pneumatically convey the pulverised coal None of these Burn the lumpy coal Completely burn the volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion KOH solution used in orsat apparatus absorbs SO₂ Neither A nor B CO₂ Both A & B SO₂ Neither A nor B CO₂ Both A & B ANSWER DOWNLOAD EXAMIANS APP
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