Fuels and Combustion With increases in carbonisation temperature Tar yield increases Coke even gas yield increases Hydrogen percentage in the coke oven gas decreases Methane percentage in the coke oven gas increases Tar yield increases Coke even gas yield increases Hydrogen percentage in the coke oven gas decreases Methane percentage in the coke oven gas increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in moisture content of coal, its Clinkering tendency during combustion increases None of these Bulk density always decreases Calorific value increases sometimes Clinkering tendency during combustion increases None of these Bulk density always decreases Calorific value increases sometimes ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal is most disadvantageous during Its pulverisation (as it requires more power) Handling (e.g. when emptying wagons) Combustion of fire slacks on the grates None of these Its pulverisation (as it requires more power) Handling (e.g. when emptying wagons) Combustion of fire slacks on the grates None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray-King Assay and Roga Index of coal is a measure of its Weathering properties Caking and swelling properties Abradability Grindability Weathering properties Caking and swelling properties Abradability Grindability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Shutting gas supply Shutting air supply Admitting more gas Admitting more air Shutting gas supply Shutting air supply Admitting more gas Admitting more air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have High fusion point of its ash Lower ash content Less moisture content High bulk density High fusion point of its ash Lower ash content Less moisture content High bulk density ANSWER DOWNLOAD EXAMIANS APP
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