Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1050 1250 750 350 1050 1250 750 350 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The resistance furnace produces heat by the None of these Electric arc struck between electrodes and the charge Combination of induced current and skin effect Flow of current through a heating element None of these Electric arc struck between electrodes and the charge Combination of induced current and skin effect Flow of current through a heating element ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 65 80 20 40 65 80 20 40 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 5% H₂ + 9% N₂ 100% CO 95% N₂ + 5% H₂ 100 %H₂ 5% H₂ + 9% N₂ 100% CO 95% N₂ + 5% H₂ 100 %H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? All of these Thickness of heating stock Thermal conductivity of stock Temperature of flue gas All of these Thickness of heating stock Thermal conductivity of stock Temperature of flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel economy in furnaces can be achieved by Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air All of these Preheating the combustion air Reducing the heat loss through furnace openings & doors Using oxygen enriched combustion air All of these Preheating the combustion air ANSWER DOWNLOAD EXAMIANS APP
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