Furnace Technology Forced recirculation of furnace gases is practised To increase heat transfer by convection To ensure uniform temperature In furnaces, operating below 750°C All of these To increase heat transfer by convection To ensure uniform temperature In furnaces, operating below 750°C All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In reverberatory furnace, charge is heated mainly by Conduction None of these Radiation of heat from the roof of the combustion chamber Natural convection Conduction None of these Radiation of heat from the roof of the combustion chamber Natural convection ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are Reduction in scale losses All of these Increase in flame temperature Saving in fuel consumption Reduction in scale losses All of these Increase in flame temperature Saving in fuel consumption 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. 3000 2000 6000 4500 3000 2000 6000 4500 ANSWER DOWNLOAD EXAMIANS APP
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 Arc None of these Low frequency induction Resistance Arc None of these ANSWER DOWNLOAD EXAMIANS APP
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 calorific value of the fuel 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 ANSWER DOWNLOAD EXAMIANS APP
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