Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Decarburising Either of the above Oxidation/scaling Sulphur penetration Decarburising Either of the above Oxidation/scaling Sulphur penetration ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Decarburisation of steel Is the removal of carbon from iron carbide (Fe₃C) Is favoured by CO₂ Affects its crystalline structure All of these Is the removal of carbon from iron carbide (Fe₃C) Is favoured by CO₂ Affects its crystalline structure All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) All of these Burner design (thoroughness of mixing versus stratification) Air supplied and furnace temperature Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) All of these Burner design (thoroughness of mixing versus stratification) Air supplied and furnace temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 44119 65-70 25-30 45-50 44119 65-70 25-30 45-50 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ is an indirectly heated furnace. Soaking pit Muffle furnace Reheating furnace Open hearth furnace Soaking pit Muffle furnace Reheating furnace Open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Oxygen enrichment of combustion air does not result in increase of the Flame temperature Oxygen in the flue gas Stack loss Heat transfer rate in the furnace Flame temperature Oxygen in the flue gas Stack loss Heat transfer rate in the furnace ANSWER DOWNLOAD EXAMIANS APP
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