Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 65-70 44119 25-30 45-50 65-70 44119 25-30 45-50 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The purpose of controlling the furnace atmosphere is to prevent surface attack by Either of the above Oxidation/scaling Sulphur penetration Decarburising Either of the above Oxidation/scaling Sulphur penetration Decarburising ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of All of these Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling All of these Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Accelerating the rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ atmosphere is maintained inside an iron blast furnace. Decarburising Inert Oxidising Reducing Decarburising Inert Oxidising Reducing ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology A refractory wall separating the stock and the source of heat is provided in a None of these Updraft kiln Continuous furnace Muffle furnace None of these Updraft kiln Continuous furnace Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Very high pressure boilers are usually __________ boilers. Waste heat Water tube Fire tube Natural circulation Waste heat Water tube Fire tube Natural circulation ANSWER DOWNLOAD EXAMIANS APP
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