Fuels and Combustion The most matured coal out of the following is Sub-bituminous Bituminous Lignite Semi-anthracite Sub-bituminous Bituminous Lignite Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Calorific value of the fuel Flame temperature Scale losses of the furnace stock None of these Calorific value of the fuel Flame temperature Scale losses of the furnace stock None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For long flame and easy ignition, the coal used should have High calorific value High volatile matter Low ash High ash High calorific value High volatile matter Low ash High ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A particular coal is said to be free burning when it Shows little or no fusing action Burns completely None of these Gives smokeless burning Shows little or no fusing action Burns completely None of these Gives smokeless burning ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Requires smaller combustion space and less secondary air Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage None of these Requires smaller combustion space and less secondary air Is more difficult to ignite and produces a shorter flame Is less liable to spontaneous combustion on storage None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for LPG Coke oven gas Carburetted water gas Gobar gas LPG Coke oven gas Carburetted water gas Gobar gas ANSWER DOWNLOAD EXAMIANS APP
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