Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always Unpredicatable 1 > 1 Unpredicatable 1 > 1 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 flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of cown dung. Fermentation None of these Oxidation Hydrogenation Fermentation None of these Oxidation Hydrogenation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation Is mainly for producing the smokeless domestic coke Is meant for the production of 'metallurgical coke' Produces less quantity of tar than high temperature carbonisation Produces higher quantity of gas than high temperature carbonisation Is mainly for producing the smokeless domestic coke Is meant for the production of 'metallurgical coke' Produces less quantity of tar than high temperature carbonisation Produces higher quantity of gas than high temperature carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Shutting air supply Admitting more air Admitting more gas Shutting gas supply Shutting air supply Admitting more air Admitting more gas Shutting gas supply ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Complete the combustion of fuel Increase the calorific value of the fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Complete the combustion of fuel ANSWER DOWNLOAD EXAMIANS APP
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