Furnace Technology Fuel economy in furnaces can be achieved by Preheating the combustion air All of these Using oxygen enriched combustion air Reducing the heat loss through furnace openings & doors Preheating the combustion air All of these Using oxygen enriched combustion air Reducing the heat loss through furnace openings & doors ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is a regenerative furnace? Coke oven heating chamber Open hearth furnace Neither A nor B Both A and B Coke oven heating chamber Open hearth furnace Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty Involve higher initial cost Are lighter & compact All of these Store smaller quantity of waste heat Involve higher initial cost Are lighter & compact All of these Store smaller quantity of waste heat ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables does not affect the furnace capacity? Size of the furnace Ratio of wall surface to surface of stock Gas velocity in furnace None of these Size of the furnace Ratio of wall surface to surface of stock Gas velocity in furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators compared to the recuperators for the same duty All of these Are of smaller size Occupy more space Are less costly All of these Are of smaller size Occupy more space Are less costly ANSWER DOWNLOAD EXAMIANS APP
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