Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Sulphur penetration Oxidation/scaling Decarburising Either of the above Sulphur penetration Oxidation/scaling Decarburising Either of the above ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The advantages of firing pulverised coal in the furnace lies in the fact that, it Accelerates the burning rate and economises on fuel consumption Permits the use of high ash content coal All of these Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel consumption Permits the use of high ash content coal All of these Permits the use of low fusion point ash coal ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Large tonnage of refractory bricks are dried in a Shaft furnace Tunnel kiln Rotary hearth furnace Muffle furnace Shaft furnace Tunnel kiln Rotary hearth furnace Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Zircon powder Beryllium Graphite powder Thoria Zircon powder Beryllium Graphite powder Thoria ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables does not affect the furnace capacity? Size of the furnace Gas velocity in furnace None of these Ratio of wall surface to surface of stock Size of the furnace Gas velocity in furnace None of these Ratio of wall surface to surface of stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, The fan operates hot and hence blades are liable to corrosion and erosion None of these Positive pressure exists in the furnace Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced The fan operates hot and hence blades are liable to corrosion and erosion None of these Positive pressure exists in the furnace Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
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