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 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 Coke breeze containing 25% ash and 2% volatile matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Quantity of coke produced from metallurgical coal may be around __________ percent. 75 95 50 30 75 95 50 30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Mixed gas' used in steel plants is a mixture of F. gas and coke oven gas Coke oven gas and converter gas Blast furnace gas and naphtha vapor Coke oven gas and L.P.G F. gas and coke oven gas Coke oven gas and converter gas Blast furnace gas and naphtha vapor Coke oven gas and L.P.G ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Safe condition for storage of high V.M. bituminous coal is that Neither A nor B Maximum 200 tons should be stored in a heap Height of the coal heap should be < 3 metres Both A and B Neither A nor B Maximum 200 tons should be stored in a heap Height of the coal heap should be < 3 metres Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a micro component present in coal? Micrinite Liptinite Fusinite Clarain Micrinite Liptinite Fusinite Clarain ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke Should have high porosity Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle Should have high porosity Should have low fusion point of its ash Must contain moderate quantities of ash, moisture, sulphur and volatile matters Should be brittle ANSWER DOWNLOAD EXAMIANS APP
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