Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Use of pulverised solid fuels Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of non-preheated combustion air Use of pulverised solid fuels Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of non-preheated combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Presence of SO₂ in furnace gases attacks the ferrous metal by way of Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Accelerating the rate of scaling Causing metal embrittlement Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature All of these Accelerating the rate of scaling Causing metal embrittlement ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Protect the charge from the effects of the products of combustion Neither A nor B Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Protect the charge from the effects of the products of combustion Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a periodic furnace? Reheating furnace Soaking pit Rotary kiln Tunnel kiln Reheating furnace Soaking pit Rotary kiln Tunnel kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Low stack loss indicates the Inefficient use of fuel Use of sub-stoichiometric air for combustion Oxygen enrichment of combustion air Efficient use of fuel Inefficient use of fuel Use of sub-stoichiometric air for combustion Oxygen enrichment of combustion air Efficient use of fuel ANSWER DOWNLOAD EXAMIANS APP
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