Furnace Technology An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace. Low frequency induction Resistance None of these Arc Low frequency induction Resistance None of these Arc ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Transportation of coal Combustion of coal by supplying it around the burner Preheating the primary air Drying of coal Transportation of coal Combustion of coal by supplying it around the burner Preheating the primary air Drying of coal ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 50 80 20 5 50 80 20 5 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of a limestone calcination rotary kiln may be around __________ percent. 40 80 20 65 40 80 20 65 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C. 6000 4500 2000 3000 6000 4500 2000 3000 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is not accomplished in an underfired furnace? Elimination of cold spot at the bottom of the charge Reduction in the temperature of furnace gases Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation Elimination of cold spot at the bottom of the charge Reduction in the temperature of furnace gases Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation ANSWER DOWNLOAD EXAMIANS APP
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