Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 5% H₂ + 9% N₂ 100% CO 100 %H₂ 95% N₂ + 5% H₂ 5% H₂ + 9% N₂ 100% CO 100 %H₂ 95% N₂ + 5% H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a Reducing atmosphere Carbon resistance furnace Furnace employing negative pressure Furnace employing neutral atmosphere Reducing atmosphere Carbon resistance furnace Furnace employing negative pressure Furnace employing neutral atmosphere ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have None of these High excess air No O₂ in flue gas CO in flue gas None of these High excess air No O₂ in flue gas CO in flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of Furnace oil with air Blast furnace gas with oxygen Furnace oil with oxygen Blast furnace gas with air Furnace oil with air Blast furnace gas with oxygen Furnace oil with oxygen Blast furnace gas with air 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 Reverberatory furnace is used for Roasting/reduction of ores Annealing steel coil Steel melting Heating air Roasting/reduction of ores Annealing steel coil Steel melting Heating air ANSWER DOWNLOAD EXAMIANS APP
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