Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Beryllium Thoria Zircon powder Graphite powder Beryllium Thoria Zircon powder Graphite powder ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Fuel used in B.F. stove is Blast furnace gas/mixed gas Pulverised coal Coke oven gas Furnace oil Blast furnace gas/mixed gas Pulverised coal Coke oven gas Furnace oil ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In which of the following furnaces, the gases are sucked through the stock bed from below? Beehive oven Sintering machine Soaking pit None of these Beehive oven Sintering machine Soaking pit None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Drying of coal Transportation of coal Preheating the primary air Combustion of coal by supplying it around the burner Drying of coal Transportation of coal Preheating the primary air Combustion of coal by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? 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.) Both A and B Solid fuels ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these ANSWER DOWNLOAD EXAMIANS APP
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