Furnace Technology Means for giving direction to the circulation of gases in furnaces are Fans Location of outlet ports and heating & combustion devices Arrangement of heating stock in the furnaces All of these Fans Location of outlet ports and heating & combustion devices Arrangement of heating stock in the furnaces All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement All of these Accelerating the rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators compared to metallic recuperators for the same duty Occupy more space Have higher pressure differential between flue gas & air side Are lighter Are less costly Occupy more space Have higher pressure differential between flue gas & air side Are lighter Are less costly ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel Is the removal of carbon from iron carbide (Fe₃C) All of these Affects its crystalline structure Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) All of these Affects its crystalline structure Is favoured by CO₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of fuel in a furnace with oxygen enriched air results in higher Flame temperature Fuel consumption Stack loss Flue gas volume Flame temperature Fuel consumption Stack loss Flue gas volume ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the Nature of process ; whether batch, continuous or intermittant Thermal conductivity of the charge & structural materials of furnace Rate of firing and emissivity of flame All of these Nature of process ; whether batch, continuous or intermittant Thermal conductivity of the charge & structural materials of furnace Rate of firing and emissivity of flame All of these ANSWER DOWNLOAD EXAMIANS APP
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