Furnace Technology Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? Increase in flame temperature Reduction in scale losses Saving in fuel consumption Increase in calorific value of the fuel Increase in flame temperature Reduction in scale losses Saving in fuel consumption Increase in calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Use of waste heat recovery equipments Thickness of the stock Emissivity of the refactory walls Size of the furance Use of waste heat recovery equipments Thickness of the stock Emissivity of the refactory walls Size of the furance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the 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 Difference in density between hot and cold gases 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. 40 5 20 60 40 5 20 60 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a Carbon resistance furnace Reducing atmosphere Furnace employing neutral atmosphere Furnace employing negative pressure Carbon resistance furnace Reducing atmosphere Furnace employing neutral atmosphere Furnace employing negative pressure ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by Preheating the fuel gas All of these Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas All of these Preheating the combustion air Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
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