Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel Flame temperature achieved Speed of combustion of fuel Heat transfer rate to the stock in the furnace Calorific value of the fuel Flame temperature achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Lignite High temperature coke (V.M < 0.5%) Bituminous coal Anthracite Lignite High temperature coke (V.M < 0.5%) Bituminous coal Anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content in coking coal may be about __________ percent. 22 46 7 1 22 46 7 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called Back draughting Under pressurising Banking None of these Back draughting Under pressurising Banking None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High ash containing coke Produces more slag when used in the blast furnace None of these Is desirable in producer gas manufacture Has poor strength and abrasion resistance Produces more slag when used in the blast furnace None of these Is desirable in producer gas manufacture Has poor strength and abrasion resistance ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Adiabatic flame temperature of a fuel is dependent on the initial temperature of Both A & B Neither A nor B Fuel Air Both A & B Neither A nor B Fuel Air ANSWER DOWNLOAD EXAMIANS APP
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