Furnace Technology Hearth furnaces are not used for Roasting Melting None of these Reheating Roasting Melting None of these Reheating ANSWER DOWNLOAD EXAMIANS APP
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 of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? Saving in fuel consumption Reduction in scale losses Increase in calorific value of the fuel Increase in flame temperature Saving in fuel consumption Reduction in scale losses Increase in calorific value of the fuel Increase in flame temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 40 65 20 80 40 65 20 80 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Rotary kilns are used in the Both A and B Neither A nor B Cement manufacture Calcination of limestone & dolomite Both A and B Neither A nor B Cement manufacture Calcination of limestone & dolomite 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. 20 60 40 5 20 60 40 5 ANSWER DOWNLOAD EXAMIANS APP
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