Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100 %H₂ 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ 100% CO 100 %H₂ 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ 100% CO ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas Increasing the draft in the furnace Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas Increasing the draft in the furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the Corrosive nature of the waste gas Quantity & temperature of waste gas Dust concentration & nature of dust in waste gas All of these Corrosive nature of the waste gas Quantity & temperature of waste gas Dust concentration & nature of dust in waste gas All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 80 20 50 5 80 20 50 5 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 Imperfect mixing of fuel & air and infiltration of air Use of non-preheated combustion air Use of excessive positive draft in the furnace Use of pulverised solid fuels Imperfect mixing of fuel & air and infiltration of air Use of non-preheated combustion air Use of excessive positive draft in the furnace Use of pulverised solid fuels ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Furnace aerodynamics is related to the __________ in the furnace. Pressure adjustment Movement of gases Temperature control Measurement of flue gas volume Pressure adjustment Movement of gases Temperature control Measurement of flue gas volume ANSWER DOWNLOAD EXAMIANS APP
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