Fuels and Combustion A coal with high __________ content, would ignite most easily. Fixed carbon Volatile matter Ash Oxygen Fixed carbon Volatile matter Ash Oxygen 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. Porosity None of these Density Electrical resistivity Porosity None of these Density Electrical resistivity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion L.D. converter gas (produced in steel plant) comprises mainly of CO₂ & H₂ CO & O₂ CO (upto 65%) & CO₂ CO₂ & O₂ CO₂ & H₂ CO & O₂ CO (upto 65%) & CO₂ CO₂ & O₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because It reduces its calorific value tremendously There are chances of explosion during preheating The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously It reduces its calorific value tremendously There are chances of explosion during preheating The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 25, 000 2500 10, 000 35, 000 25, 000 2500 10, 000 35, 000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Admitting more air Shutting gas supply Shutting air supply Admitting more gas Admitting more air Shutting gas supply Shutting air supply Admitting more gas ANSWER DOWNLOAD EXAMIANS APP
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