Furnace Technology In order to maintain an oxidising atmosphere in a furnace, it should have More of CO in flue gas More of excess air More of CO₂ in flue gas Less of excess air More of CO in flue gas More of excess air More of CO₂ in flue gas Less of excess air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement All of these Accelerating the rate of scaling Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace employing forced draught as compared to induced draught, Positive pressure exists in the furnace None of these The fan operates hot and hence blades are liable to corrosion and erosion Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced Positive pressure exists in the furnace None of these The fan operates hot and hence blades are liable to corrosion and erosion Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators compared to the recuperators for the same duty All of these Occupy more space Are less costly Are of smaller size All of these Occupy more space Are less costly Are of smaller size ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Cement Kiln is a Batch furnace Tunnel Kiln Natural draft furnace Rotary Kiln Batch furnace Tunnel Kiln Natural draft furnace Rotary Kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In low or standard frequency induction furnace, heat is produced by the Combination of induced current and skin effect None of these Induction and resistance Current flow through a heating element Combination of induced current and skin effect None of these Induction and resistance Current flow through a heating element ANSWER DOWNLOAD EXAMIANS APP
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