Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 10 65 25 90 10 65 25 90 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Power required in case of forced draught as compared to induced draught (for the same draught produced) is More Less Same Either more or less; depends on the flue gas density Answer: Option B More Less Same Either more or less; depends on the flue gas density Answer: Option B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is not accomplished in an underfired furnace? Elimination of cold spot at the bottom of the charge Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases Portection of the periphery of the charge from excessive radiation Elimination of cold spot at the bottom of the charge Increase in heating capacity/m² of floor space Reduction in the temperature of furnace gases Portection of the periphery of the charge from excessive radiation 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. 5 40 20 60 5 40 20 60 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel economy in an industrial furnace operation can not be achieved by the use of Recupterators Combustion air not enriched with oxygen Stoichiometric combustion air Non-preheated combustion air Recupterators Combustion air not enriched with oxygen Stoichiometric combustion air Non-preheated combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Size of the combustion chamber of a furnace depends upon the Method of mixing the fuel & air Preheat temperature of fuel & air All of these Heat release rate of the fuel Method of mixing the fuel & air Preheat temperature of fuel & air All of these Heat release rate of the fuel ANSWER DOWNLOAD EXAMIANS APP
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