Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100% CO 5% H₂ + 9% N₂ 100 %H₂ 95% N₂ + 5% H₂ 100% CO 5% H₂ + 9% N₂ 100 %H₂ 95% N₂ + 5% H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Dampers are located Near the top of the chimney Before the I.D fan After the I.D. fan Anywhere after the I.D. fan Near the top of the chimney Before the I.D fan After the I.D. fan Anywhere after the I.D. fan ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel economy in furnaces can be achieved by All of these Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air Preheating the combustion air All of these Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air Preheating the combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An example of indirectly heated furnace is the Reheating furnace Soaking pit Muffle furnace None of these Reheating furnace Soaking pit Muffle furnace None of these 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 Thermal conductivity of the charge & structural materials of furnace Nature of process ; whether batch, continuous or intermittant Rate of firing and emissivity of flame All of these Thermal conductivity of the charge & structural materials of furnace Nature of process ; whether batch, continuous or intermittant Rate of firing and emissivity of flame All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by Preheating the fuel gas Preheating the combustion air Increasing the draft in the furnace Oxygen enrichment of combustion air Preheating the fuel gas Preheating the combustion air Increasing the draft in the furnace Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
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