Fuels and Combustion Efficient burning of anthracite coal requires Fine grinding High excess air All of these Low preheat of air Fine grinding High excess air All of these Low preheat of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal tar (produced by high temperature carbonisation) is the main source of Paraffins Olefins Alphatic compounds Aromatic compounds Paraffins Olefins Alphatic compounds Aromatic compounds ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which is the most matured coal? Lignite Anthracite Semi-anthracite Bituminous Lignite Anthracite Semi-anthracite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 15 & 8 10 & 3 10 & 20 3 & 10 15 & 8 10 & 3 10 & 20 3 & 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the equilibrium moisture content of the coal increases, its Swelling number increases Calorific value increases Bulk density decreases Swelling number decreases Swelling number increases Calorific value increases Bulk density decreases Swelling number decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke having higher porosity has Lower bulk density Higher reactivity All of these Lower strength Lower bulk density Higher reactivity All of these Lower strength ANSWER DOWNLOAD EXAMIANS APP
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