Fuels and Combustion Higher percentage of ash in coal meant for the production of metallurgical grade coke Decreases the abrasion resistance of coke Decreases the hardness of coke None of these Causes brittleness in steel Decreases the abrasion resistance of coke Decreases the hardness of coke None of these Causes brittleness in steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increases in carbonisation temperature Tar yield increases Coke even gas yield increases Methane percentage in the coke oven gas increases Hydrogen percentage in the coke oven gas decreases Tar yield increases Coke even gas yield increases Methane percentage in the coke oven gas increases Hydrogen percentage in the coke oven gas decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is A coking coal A high rank coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation A coking coal A high rank coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation 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. Density None of these Electrical resistivity Porosity Density None of these Electrical resistivity Porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it None of these Gives smokeless burning Shows little or no fusing action Burns completely None of these Gives smokeless burning Shows little or no fusing action Burns completely ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bituminous coal Ignites less easily than anthracite Is generally coking Both B and C Burns with smoky yellow flame Ignites less easily than anthracite Is generally coking Both B and C Burns with smoky yellow flame ANSWER DOWNLOAD EXAMIANS APP
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