Furnace Technology Turn down ratio of a burner Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Advantages of use of preheated combustion air are Saving in fuel consumption 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 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 Preheating the combustion air All of these Oxygen enrichment of combustion air Preheating the fuel gas Preheating the combustion air All of these Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following accentuates clinker-ing troubles on furnace grate burning coal? Low reactivity of carbonised residue containing high proportion of iron & sulphur Thick firebed and preheated primary air Low forced draft & fuel bed temperature All of these Low reactivity of carbonised residue containing high proportion of iron & sulphur Thick firebed and preheated primary air Low forced draft & fuel bed temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 850 650 1000 250 850 650 1000 250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Shaft furnaces are used for Smelting Roasting Calcining All of these Smelting Roasting Calcining All of these ANSWER DOWNLOAD EXAMIANS APP
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