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 excessive positive draft in the furnace Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels Use of non-preheated combustion air Use of excessive positive draft in the furnace Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels 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 Causing metal embrittlement Accelerating the rate of scaling All of these Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to Neither A nor B Protect the charge from the effects of the products of combustion Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B Neither A nor B Protect the charge from the effects of the products of combustion Smooth out temperature inequalities on the combustion side of the muffle wall Both A & B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a periodic furnace? Reheating furnace Rotary kiln Soaking pit Tunnel kiln Reheating furnace Rotary kiln Soaking pit Tunnel kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Low stack loss indicates the 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 Inefficient use of fuel ANSWER DOWNLOAD EXAMIANS APP
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