Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100 %H₂ 100% CO 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ 100 %H₂ 100% CO 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature All of these Burner design (thoroughness of mixing versus stratification) Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature All of these Burner design (thoroughness of mixing versus stratification) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Air filtration in a furnace Reduces its thermal efficiency None of these Increases the flue gas temperature Is indicated by flame sting out Reduces its thermal efficiency None of these Increases the flue gas temperature Is indicated by flame sting out ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 65 50 85 99 65 50 85 99 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the charge/stock in a furnace does not depend upon the Flue gas temperature Emissivity of refractory walls Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Flue gas temperature Emissivity of refractory walls Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Artificial draught produced by a fan in the furnace can be controlled by the All of these Speed of the fan Variation in the pitch of fan blades Damper All of these Speed of the fan Variation in the pitch of fan blades Damper ANSWER DOWNLOAD EXAMIANS APP
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