Furnace Technology Fuel economy in furnaces can be achieved by Reducing the heat loss through furnace openings & doors All of these Using oxygen enriched combustion air Preheating the combustion air Reducing the heat loss through furnace openings & doors All of these Using oxygen enriched combustion air Preheating the combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 90 10 25 65 90 10 25 65 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty Store smaller quantity of waste heat Are lighter & compact All of these Involve higher initial cost Store smaller quantity of waste heat Are lighter & compact All of these Involve higher initial cost ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of High thermal conductivity Neither A nor B Low emissivity Both A and B High thermal conductivity Neither A nor B Low emissivity Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have High excess air None of these CO in flue gas No O₂ in flue gas High excess air None of these CO in flue gas No O₂ in flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are installed in Neither A nor B Both A & B Coke ovens Open hearth furnace Neither A nor B Both A & B Coke ovens Open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
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