Fuels and Combustion For maximum discharge through a chimney, its height should be Infinitely long More than 105.7 metres 200 meters Equal to the height of the hot gas column producing draught Infinitely long More than 105.7 metres 200 meters Equal to the height of the hot gas column producing draught ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Semi-anthracite Sub-bituminous Lignite Bituminous Semi-anthracite Sub-bituminous Lignite Bituminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Width of the coke oven towards coke side is slightly more than that on pusher side to Facilitate uniform heating of the oven Facilitate easy discharging of coke as it swells during carbonisation None of these Increase the output of the coke Facilitate uniform heating of the oven Facilitate easy discharging of coke as it swells during carbonisation None of these Increase the output of the coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is Coke oven gas Pulverised coke Pitch Tar Coke oven gas Pulverised coke Pitch Tar ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Gives larger yield of coke (around 85%) as compared to by-product ovens Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Facilitates by-products recovery ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Ensure efficient burning of coal around the burner Transport the coal to the burner Reduce primary air requirement Dry the coal Ensure efficient burning of coal around the burner Transport the coal to the burner Reduce primary air requirement Dry the coal ANSWER DOWNLOAD EXAMIANS APP
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