Furnace Technology Means for giving direction to the circulation of gases in furnaces are Fans Arrangement of heating stock in the furnaces All of these Location of outlet ports and heating & combustion devices Fans Arrangement of heating stock in the furnaces All of these Location of outlet ports and heating & combustion devices ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner 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 as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. 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 as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum heat transfer in high temperature furnaces is by Radiation Either A, B or C; depends on the type of furnace Conduction Convection Radiation Either A, B or C; depends on the type of furnace Conduction Convection ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C. 150 50 100 250 150 50 100 250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following accentuates clinker-ing troubles on furnace grate burning coal? Low forced draft & fuel bed temperature Low reactivity of carbonised residue containing high proportion of iron & sulphur All of these Thick firebed and preheated primary air Low forced draft & fuel bed temperature Low reactivity of carbonised residue containing high proportion of iron & sulphur All of these Thick firebed and preheated primary air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Hearth furnaces are not used for Reheating Roasting None of these Melting Reheating Roasting None of these Melting ANSWER DOWNLOAD EXAMIANS APP
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