Fuels and Combustion Washing of coal is done to reduce the Inherent impurities Mineral matter Both B and C Adhering impurities Inherent impurities Mineral matter Both B and C Adhering impurities ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 10 0.1 5 2 10 0.1 5 2 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require least amount of secondary air for combustion? Coke breeze containing 25% ash and 2% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Anthracite containing 10% volatile matter and 8% ash Bituminous coal containing 20% ash and 25% volatile matter Coke breeze containing 25% ash and 2% volatile matter Semi-bituminous coal containing 25% ash and 20% volatile matter Anthracite containing 10% volatile matter and 8% ash Bituminous coal containing 20% ash and 25% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The fuel ratio of a coal is Neither A nor B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B Neither A nor B Helpful in estimation of its rank The ratio of its percentage of fixed carbon to that of volatile matter Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Mixed gas' used in steel plants is a mixture of Coke oven gas and L.P.G Blast furnace gas and naphtha vapor F. gas and coke oven gas Coke oven gas and converter gas Coke oven gas and L.P.G Blast furnace gas and naphtha vapor F. gas and coke oven gas Coke oven gas and converter gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In flue gas analysis by Orsat's apparatus, carbon monoxide is absorbed by Cuprous chloride Alkaline pyrogallol solution None of these Potassium hydroxide Cuprous chloride Alkaline pyrogallol solution None of these Potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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