Furnace Technology Ingress of cold air in the furnaces through cracks, charging doors, openings etc. Reduces the flue gas temperature and makes the furnace atmosphere oxidising Increases the load on the induced draft fan Reduces the furnace draught All of these Reduces the flue gas temperature and makes the furnace atmosphere oxidising Increases the load on the induced draft fan Reduces the furnace draught All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The rate of scaling of furnace stock depends upon the Nature of atmosphere All of these Time Temperature Nature of atmosphere All of these Time Temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of All of these Causing metal embrittlement Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Causing metal embrittlement Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In which of the following furnaces, the gases are sucked through the stock bed from below? Soaking pit Sintering machine Beehive oven None of these Soaking pit Sintering machine Beehive oven None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Use of non-preheated combustion air Use of pulverised solid fuels Use of excessive positive draft in the furnace Imperfect mixing of fuel & air and infiltration of air Use of non-preheated combustion air Use of pulverised solid fuels Use of excessive positive draft in the furnace Imperfect mixing of fuel & air and infiltration of air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? Thermal conductivity of stock Temperature of flue gas Thickness of heating stock All of these Thermal conductivity of stock Temperature of flue gas Thickness of heating stock All of these ANSWER DOWNLOAD EXAMIANS APP
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