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 Positive pressure exists in the furnace None of these 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 Positive pressure exists in the furnace None of these Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a muffle furnace, the muffle Permits the use of controlled atmosphere for the protection of stock Assists in temperature equalisation in the charge All of these Retards the heat transfer Permits the use of controlled atmosphere for the protection of stock Assists in temperature equalisation in the charge All of these Retards the heat transfer ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In low or standard frequency induction furnace, heat is produced by the Current flow through a heating element Induction and resistance None of these Combination of induced current and skin effect Current flow through a heating element Induction and resistance None of these Combination of induced current and skin effect ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? None of these Regenerator Metallic recuperator Ceramic recuperator None of these Regenerator Metallic recuperator Ceramic recuperator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to Both A & B Neither A nor B Smooth out temperature inequalities on the combustion side of the muffle wall Protect the charge from the effects of the products of combustion Both A & B Neither A nor B Smooth out temperature inequalities on the combustion side of the muffle wall Protect the charge from the effects of the products of combustion ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The reason for excessive clinker formation in gas producers is the Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature Use of coal/coke containing a high % of fines and ash All of these Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of fuel having too low an ash fusion temperature Use of coal/coke containing a high % of fines and ash All of these ANSWER DOWNLOAD EXAMIANS APP
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