Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 85 99 50 65 85 99 50 65 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 100% CO 100 %H₂ 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ 100% CO 100 %H₂ 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Tunnel kilns are usually used for Roasting of pyrites Melting of glass Reheating of slabs Drying/tempering of refractories Roasting of pyrites Melting of glass Reheating of slabs Drying/tempering of refractories ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In reverberatory furnace, charge is heated mainly by None of these Radiation of heat from the roof of the combustion chamber Natural convection Conduction None of these Radiation of heat from the roof of the combustion chamber Natural convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing? Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation Ash disposal problem Erosion of induced draft fan blades Excessive fly ash discharge from the stack Higher power consumption in its transportation Ash disposal problem ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The heat recoverable from flue gases of furnaces depends on the Flue gas temperature drop through the furnace Quantity of flue gases Thermal efficiency of furnace All of these Flue gas temperature drop through the furnace Quantity of flue gases Thermal efficiency of furnace All of these ANSWER DOWNLOAD EXAMIANS APP