Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 25-30 44119 65-70 45-50 25-30 44119 65-70 45-50 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is not an additive for flue gases from furnace to reduce its dew-point? Alkaline powders None of these Ammonia Fine dolomite Alkaline powders None of these Ammonia Fine dolomite ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is not accomplished in an underfired furnace? Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation Reduction in the temperature of furnace gases Elimination of cold spot at the bottom of the charge Increase in heating capacity/m² of floor space Portection of the periphery of the charge from excessive radiation Reduction in the temperature of furnace gases Elimination of cold spot at the bottom of the charge ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Forced recirculation of furnace gases is practised All of these In furnaces, operating below 750°C To increase heat transfer by convection To ensure uniform temperature All of these In furnaces, operating below 750°C To increase heat transfer by convection To ensure uniform temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Shaft furnaces are used for Calcining Roasting Smelting All of these Calcining Roasting Smelting All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is a regenerative furnace? Coke oven heating chamber Open hearth furnace Both A and B Neither A nor B Coke oven heating chamber Open hearth furnace Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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