Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 80 50 5 20 80 50 5 20 ANSWER DOWNLOAD EXAMIANS APP
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 All of these Causing metal embrittlement Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Causing metal embrittlement Accelerating the rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An example of a periodic furnace is the Rotary kilns Blast furnace Blast furnace stoves Coke oven heating chamber Rotary kilns Blast furnace Blast furnace stoves Coke oven heating chamber ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which one is not an induced draught furnace? Blast furnace stove High pressure boiler Sintering furnace None of these Blast furnace stove High pressure boiler Sintering furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? 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.) Both A and B Solid fuels Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables does not affect the furnace capacity? Size of the furnace Gas velocity in furnace None of these Ratio of wall surface to surface of stock Size of the furnace Gas velocity in furnace None of these Ratio of wall surface to surface of stock ANSWER DOWNLOAD EXAMIANS APP
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