Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Preheating the primary air Transportation of coal Combustion of coal by supplying it around the burner Drying of coal Preheating the primary air Transportation of coal Combustion of coal by supplying it around the burner Drying of coal ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which one shows the diagramatic heat balance in a furnace? Cox chart Sankey diagram Ostwald chart None of these Cox chart Sankey diagram Ostwald chart None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel Is favoured by CO₂ Affects its crystalline structure Is the removal of carbon from iron carbide (Fe₃C) All of these Is favoured by CO₂ Affects its crystalline structure Is the removal of carbon from iron carbide (Fe₃C) All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heat recoverable from flue gases of furnaces depends on the Thermal efficiency of furnace Quantity of flue gases Flue gas temperature drop through the furnace All of these Thermal efficiency of furnace Quantity of flue gases Flue gas temperature drop through the furnace All of these 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 Which is not accomplished in an underfired furnace? Elimination of cold spot at the bottom of the charge Portection of the periphery of the charge from excessive radiation Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases Elimination of cold spot at the bottom of the charge Portection of the periphery of the charge from excessive radiation Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases ANSWER DOWNLOAD EXAMIANS APP
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