Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels Use of excessive positive draft in the furnace Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels Use of excessive positive draft in the furnace Use of non-preheated combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which is a regenerative furnace? Open hearth furnace Coke oven heating chamber Neither A nor B Both A and B Open hearth furnace Coke oven heating chamber Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators compared to the recuperators for the same duty Occupy more space Are less costly All of these Are of smaller size Occupy more space Are less costly All of these Are of smaller size ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Artificial draught produced by a fan in the furnace can be controlled by the Variation in the pitch of fan blades Speed of the fan Damper All of these Variation in the pitch of fan blades Speed of the fan Damper All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced Positive pressure exists in the furnace The fan operates hot and hence blades are liable to corrosion and erosion None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Both A and B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels Neither A nor B Both A and B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS