Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.8 A M = A M = 0.5 A M = 1.1 A M = 1.8 A M = A M = 0.5 A M = 1.1 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 1000 5000 10000 50 1000 5000 10000 50 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wind loss' resulting from unscientific storage of coal may be the order of about __________ percent. 7.5 2.5 10.5 14.5 7.5 2.5 10.5 14.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature decreases progressively from anthracite to lignite, because Moisture content increases Ash content increases Carbon content decreases Volatile matter content increases Moisture content increases Ash content increases Carbon content decreases Volatile matter content increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. None of these Electrical resistivity Porosity Density None of these Electrical resistivity Porosity Density ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 700 to 850 550 to 650 100 to 150 350 to 450 700 to 850 550 to 650 100 to 150 350 to 450 ANSWER DOWNLOAD EXAMIANS APP
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