Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of 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 Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of furnaces can be improved by All of these Maintaining proper draught Waste heat recovery from flue gas Minimising heat losses from furnace walls All of these Maintaining proper draught Waste heat recovery from flue gas Minimising heat losses from furnace walls ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Recuperator is An intermittant waste heat recovery equipment Not used for fuel gas preheating A continuous waste heat recovery equipment Heavier than regenerator meant for the same duty An intermittant waste heat recovery equipment Not used for fuel gas preheating A continuous waste heat recovery equipment Heavier than regenerator meant for the same duty ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time? None of these Regenerator Recuperator Waste heat boiler None of these Regenerator Recuperator Waste heat boiler ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following advantages is not associated with the use of preheated air for combustion of a fuel in the furnace? Increase in calorific value of the fuel Reduction in scale losses Increase in flame temperature Saving in fuel consumption Increase in calorific value of the fuel Reduction in scale losses Increase in flame temperature Saving in fuel consumption ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the Type of burner and combustion chamber All of these Amount of excess air supplied and load on the boiler Physical nature, ash content and fineness of the coal Type of burner and combustion chamber All of these Amount of excess air supplied and load on the boiler Physical nature, ash content and fineness of the coal ANSWER DOWNLOAD EXAMIANS APP
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