Fuels and Combustion With increases in carbonisation temperature Hydrogen percentage in the coke oven gas decreases Methane percentage in the coke oven gas increases Coke even gas yield increases Tar yield increases Hydrogen percentage in the coke oven gas decreases Methane percentage in the coke oven gas increases Coke even gas yield increases Tar yield increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest gross calorific value? Carburetted water gas Blast furnace gas Oil refinery gas Coke oven gas Carburetted water gas Blast furnace gas Oil refinery gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituents of benzol are Ammonia & phenol Tar & creosote Benzene, toluene & xylene Anthracene & phenol Ammonia & phenol Tar & creosote Benzene, toluene & xylene Anthracene & phenol ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a rich fuel gas? Coal gas from underground gasification of coal Producer gas None of these Refinery gases Coal gas from underground gasification of coal Producer gas None of these Refinery gases ANSWER DOWNLOAD EXAMIANS APP
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