Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Flame temperature achieved Heat transfer rate to the stock in the furnace Speed of combustion of fuel Calorific value of the fuel Flame temperature achieved Heat transfer rate to the stock in the furnace Speed of combustion of fuel Calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Out of the following fuels, the difference between the net and gross calorific value is maximum in case of Fuel oil Pitch Bituminous coal Blast furnace gas Fuel oil Pitch Bituminous coal Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is stripped of its H₂S and mercaptans content by Bubbling it through dilute sulphuric acid Absorption in wash oil Adsorption on silica gel Adsorption on bog iron bed Bubbling it through dilute sulphuric acid Absorption in wash oil Adsorption on silica gel Adsorption on bog iron bed ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ? Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal Anthracite coal Blast furnace coke Low temperature coke Sub-bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Requirement of large volume combustion chamber Incomplete combustion of coal Chances of clinker formation Risk of explosion Requirement of large volume combustion chamber Incomplete combustion of coal Chances of clinker formation Risk of explosion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain Both B & C CO H₂O CO₂ Both B & C CO H₂O CO₂ ANSWER DOWNLOAD EXAMIANS APP
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