Furnace Technology Decarburisation of steel Affects its crystalline structure All of these Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) Affects its crystalline structure All of these Is favoured by CO₂ Is the removal of carbon from iron carbide (Fe₃C) ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following furnaces will have maximum thermal efficiency? Boiler furnace Rotary kilns Soaking pits Walking beam reheating furnace Boiler furnace Rotary kilns Soaking pits Walking beam reheating furnace 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 Turndown ratio of a burner gives an idea of the __________ in the furnace. Volume of the combustion chamber Maximum heat input rate only Minimum heat input rate only Range of fuel firing rates Volume of the combustion chamber Maximum heat input rate only Minimum heat input rate only Range of fuel firing rates ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of Blast furnace gas with air Furnace oil with oxygen Blast furnace gas with oxygen Furnace oil with air Blast furnace gas with air Furnace oil with oxygen Blast furnace gas with oxygen Furnace oil with air ANSWER DOWNLOAD EXAMIANS APP
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