Furnace Technology Fuel economy in furnaces can be achieved by Preheating the combustion air 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 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Protect the charge from the effects of the products of combustion Neither A nor B Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Protect the charge from the effects of the products of combustion Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of furnaces can be improved by Maintaining proper draught All of these Waste heat recovery from flue gas Minimising heat losses from furnace walls Maintaining proper draught All of these Waste heat recovery from flue gas Minimising heat losses from furnace walls ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Emissivity of the refactory walls Use of waste heat recovery equipments Size of the furance Thickness of the stock Emissivity of the refactory walls Use of waste heat recovery equipments Size of the furance Thickness of the stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators compared to the recuperators for the same duty Occupy more space All of these Are less costly Are of smaller size Occupy more space All of these Are less costly Are of smaller size ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel All of these Affects its crystalline structure Is the removal of carbon from iron carbide (Fe₃C) Is favoured by CO₂ All of these Affects its crystalline structure Is the removal of carbon from iron carbide (Fe₃C) Is favoured by CO₂ ANSWER DOWNLOAD EXAMIANS APP
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