Furnace Technology Advantages of use of preheated combustion air are Increase in flame temperature Reduction in scale losses All of these Saving in fuel consumption Increase in flame temperature Reduction in scale losses All of these Saving in fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is a regenerative furnace? Coke oven heating chamber Open hearth furnace Neither A nor B Both A and B Coke oven heating chamber Open hearth furnace Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Use of pulverised coal in boilers provides Higher calorific value Better combustion Less erosion on furnace wall Smokeless burning Higher calorific value Better combustion Less erosion on furnace wall Smokeless burning ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the Use of coal/coke containing a high % of fines and ash Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature All of these Use of coal/coke containing a high % of fines and ash Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Means for giving direction to the circulation of gases in furnaces are Location of outlet ports and heating & combustion devices All of these Arrangement of heating stock in the furnaces Fans Location of outlet ports and heating & combustion devices All of these Arrangement of heating stock in the furnaces Fans ANSWER DOWNLOAD EXAMIANS APP
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