Furnace Technology Ingress of cold air in the furnaces through cracks, charging doors, openings etc. All of these Reduces the furnace draught Increases the load on the induced draft fan Reduces the flue gas temperature and makes the furnace atmosphere oxidising All of these Reduces the furnace draught Increases the load on the induced draft fan Reduces the flue gas temperature and makes the furnace atmosphere oxidising 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 pulverised solid fuels Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of pulverised solid fuels Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ atmosphere is maintained inside an iron blast furnace. Decarburising Inert Oxidising Reducing Decarburising Inert Oxidising Reducing ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Power required in case of forced draught as compared to induced draught (for the same draught produced) is Less Same More Either more or less; depends on the flue gas density Answer: Option B Less Same More Either more or less; depends on the flue gas density Answer: Option B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace. Arc None of these Resistance Low frequency induction Arc None of these Resistance Low frequency induction ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Example of an indirectly heated furnace is Neither A nor B Both A and B Muffle furnace Hood annealing furnace Neither A nor B Both A and B Muffle furnace Hood annealing furnace ANSWER DOWNLOAD EXAMIANS APP
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