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 There are chances of explosion during preheating It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot It reduces its flame temperature tremendously There are chances of explosion during preheating It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Shutting gas supply Shutting air supply Admitting more air Admitting more gas Shutting gas supply Shutting air supply Admitting more air Admitting more gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier. Fixed Fluidised Moving Entrained Fixed Fluidised Moving Entrained ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a manufactured fuel ? Furnace oil Bagasse Kerosene Semi-coke Furnace oil Bagasse Kerosene Semi-coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is removed from coke oven gas by None of these Absorbing in vetro-coke solution Adsorbing on bog iron bed Scrubbing with wash oil (a petroleum product) None of these Absorbing in vetro-coke solution Adsorbing on bog iron bed Scrubbing with wash oil (a petroleum product) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
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