Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels Use of excessive positive draft in the furnace Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of pulverised solid fuels 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 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 Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at high temperature Causing metal embrittlement Accelerating the rate of scaling ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The main function of a muffle in the muffle furnace is to 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 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? Tunnel kiln Rotary kiln Reheating furnace Soaking pit Tunnel kiln Rotary kiln Reheating furnace Soaking pit ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Low stack loss indicates the Use of sub-stoichiometric air for combustion Inefficient use of fuel Oxygen enrichment of combustion air Efficient use of fuel Use of sub-stoichiometric air for combustion Inefficient use of fuel Oxygen enrichment of combustion air Efficient use of fuel ANSWER DOWNLOAD EXAMIANS APP
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