Furnace Technology Circulation of gases in furnace is caused by the Difference in density between hot and cold gases Change in volume during a change of temperature Furnace pressure in conjunction with draft in flues All of these Difference in density between hot and cold gases Change in volume during a change of temperature Furnace pressure in conjunction with draft in flues All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 40 60 20 80 40 60 20 80 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an Blast furnace Annealing furnace Steam boiler Salt bath furnace Blast furnace Annealing furnace Steam boiler Salt bath furnace 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 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 Imperfect mixing of fuel & air and infiltration of air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Protective gas used in the annealing furnace for steel coil comprises of 95% N₂ + 5% H₂ 100 %H₂ 100% CO 5% H₂ + 9% N₂ 95% N₂ + 5% H₂ 100 %H₂ 100% CO 5% H₂ + 9% N₂ ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are normally provided in the All of these Glass melting furnace Open hearth furnace By product coke ovens All of these Glass melting furnace Open hearth furnace By product coke ovens ANSWER DOWNLOAD EXAMIANS APP
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