Furnace Technology Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 60 20 80 40 60 20 80 40 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 Pulverised fuel fired furnaces employ __________ fuel firing. Horizontal All of these Vertical Tangential Horizontal All of these Vertical Tangential ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Air filtration in a furnace None of these Reduces its thermal efficiency Increases the flue gas temperature Is indicated by flame sting out None of these Reduces its thermal efficiency Increases the flue gas temperature Is indicated by flame sting out ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Artificial draught produced by a fan in the furnace can be controlled by the Speed of the fan Variation in the pitch of fan blades All of these Damper Speed of the fan Variation in the pitch of fan blades All of these Damper ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced The fan operates hot and hence blades are liable to corrosion and erosion Positive pressure exists in the furnace None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced The fan operates hot and hence blades are liable to corrosion and erosion Positive pressure exists in the furnace None of these ANSWER DOWNLOAD EXAMIANS APP
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