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) All of these Air supplied and furnace temperature 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) All of these Air supplied and furnace temperature Burner design (thoroughness of mixing versus stratification) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel Is the removal of carbon from iron carbide (Fe₃C) Affects its crystalline structure All of these Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) Affects its crystalline structure All of these Is favoured by CO₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Means for giving direction to the circulation of gases in furnaces are Fans Arrangement of heating stock in the furnaces Location of outlet ports and heating & combustion devices All of these Fans Arrangement of heating stock in the furnaces Location of outlet ports and heating & combustion devices All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overfire burning in a furnace is a phenomenon characterised by Supply of excess air None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess fuel Supply of excess air None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess fuel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Are less costly Are lighter Have higher pressure differential between flue gas & air side Occupy more space Are less costly Are lighter Have higher pressure differential between flue gas & air side Occupy more space ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain an oxidising atmosphere in a furnace, it should have More of CO in flue gas More of CO₂ in flue gas Less of excess air More of excess air More of CO in flue gas More of CO₂ in flue gas Less of excess air More of excess air ANSWER DOWNLOAD EXAMIANS APP
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