Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling Causing metal embrittlement All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling Causing metal embrittlement All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Acid dew point temperature (ADT) of a flue gas produced by the combustion of a fuel containing 1% sulphur may be about __________ °C. 130 180 80 250 130 180 80 250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have None of these High excess air CO in flue gas No O₂ in flue gas None of these High excess air CO in flue gas No O₂ in flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Both A and B Solid fuels Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B Solid fuels Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Temperature of a furnace fired with low calorific value fuel gas (i.e. lean gas) can be increased by All of these Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas All of these Preheating the combustion air Oxygen enrichment of combustion air Preheating the fuel gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An example of a periodic furnace is the Coke oven heating chamber Blast furnace Rotary kilns Blast furnace stoves Coke oven heating chamber Blast furnace Rotary kilns Blast furnace stoves ANSWER DOWNLOAD EXAMIANS APP
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