Furnace Technology Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? Saving in fuel consumption Increase in flame temperature Reduction in scale losses Increase in calorific value of the fuel Saving in fuel consumption Increase in flame temperature Reduction in scale losses Increase in calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling All of these Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Neither A nor B Solid fuels Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B Neither A nor B Solid fuels Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum heat transfer in high temperature furnaces is by Convection Radiation Either A, B or C; depends on the type of furnace Conduction Convection Radiation Either A, B or C; depends on the type of furnace Conduction 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 If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Premix Diffusion Outside mixing type Rotary Premix Diffusion Outside mixing type Rotary ANSWER DOWNLOAD EXAMIANS APP
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