Furnace Technology Regenerators as compared to recuperators for the same duty All of these Store smaller quantity of waste heat Are lighter & compact Involve higher initial cost All of these Store smaller quantity of waste heat Are lighter & compact Involve higher initial cost ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Furnace pressure is normally controlled by regulating the Air pressure Fuel gas pressure Speed of I.D. fan Damper Air pressure Fuel gas pressure Speed of I.D. fan Damper ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 250 650 1000 850 250 650 1000 850 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels Neither A nor B Both A and B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100 %H₂ 5% H₂ + 9% N₂ 100% CO 95% N₂ + 5% H₂ 100 %H₂ 5% H₂ + 9% N₂ 100% CO 95% N₂ + 5% H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C. 5 40 60 20 5 40 60 20 ANSWER DOWNLOAD EXAMIANS APP
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