Furnace Technology Forced recirculation of furnace gases is practised In furnaces, operating below 750°C To ensure uniform temperature To increase heat transfer by convection All of these In furnaces, operating below 750°C To ensure uniform temperature To increase heat transfer by convection All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B Solid fuels Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B Solid fuels ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain an oxidising atmosphere in a furnace, it should have More of excess air More of CO in flue gas Less of excess air More of CO₂ in flue gas More of excess air More of CO in flue gas Less of excess air More of CO₂ in flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues Change in volume during a change of temperature All of these Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues Change in volume during a change of temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heat recoverable from flue gases of furnaces depends on the All of these Thermal efficiency of furnace Flue gas temperature drop through the furnace Quantity of flue gases All of these Thermal efficiency of furnace Flue gas temperature drop through the furnace Quantity of flue gases ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 50 99 85 65 50 99 85 65 ANSWER DOWNLOAD EXAMIANS APP
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