Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Decarburising Either of the above Oxidation/scaling Sulphur penetration Decarburising Either of the above Oxidation/scaling Sulphur penetration ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Furnace pressure is normally controlled by regulating the Damper Air pressure Fuel gas pressure Speed of I.D. fan Damper Air pressure Fuel gas pressure Speed of I.D. fan ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In reverberatory furnace, charge is heated mainly by None of these Natural convection Conduction Radiation of heat from the roof of the combustion chamber None of these Natural convection Conduction Radiation of heat from the roof of the combustion chamber ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables affects the furnace capacity? Temperature of flue gas Thermal conductivity of stock All of these Thickness of heating stock Temperature of flue gas Thermal conductivity of stock All of these Thickness of heating stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators as compared to recuperators for the same duty All of these Involve higher initial cost Are lighter & compact Store smaller quantity of waste heat All of these Involve higher initial cost Are lighter & compact Store smaller quantity of waste heat 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
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