Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overfire burning in a furnace is a phenomenon characterised by None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air Supply of excess fuel None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air Supply of excess fuel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Oxygen enrichment of combustion air does not result in increase of the Stack loss Oxygen in the flue gas Heat transfer rate in the furnace Flame temperature Stack loss Oxygen in the flue gas Heat transfer rate in the furnace Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Air filtration in a furnace Increases the flue gas temperature Reduces its thermal efficiency None of these Is indicated by flame sting out Increases the flue gas temperature Reduces its thermal efficiency None of these Is indicated by flame sting out ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Hearth furnaces are not used for None of these Reheating Melting Roasting None of these Reheating Melting Roasting ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Test specimen for determination of refractoriness under load (RUL) of a refractory is heated in a Reducing atmosphere Carbon resistance furnace Furnace employing negative pressure Furnace employing neutral atmosphere Reducing atmosphere Carbon resistance furnace Furnace employing negative pressure Furnace employing neutral atmosphere ANSWER DOWNLOAD EXAMIANS APP
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