Furnace Technology The reason for excessive clinker formation in gas producers is the Use of fuel having too low an ash fusion temperature Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of coal/coke containing a high % of fines and ash All of these Use of fuel having too low an ash fusion temperature Development of hot spots in the fuel bed and an abnormally high rate of gasification Use of coal/coke containing a high % of fines and ash All of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ostwald charts are meant for None of these Computation of flue gas analysis Computing the excess/deficiency of combustion air Calculation of flue gas temperature None of these Computation of flue gas analysis Computing the excess/deficiency of combustion air Calculation of flue gas temperature ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace. Walking beam Rotary hearth Shaft Tunnel Walking beam Rotary hearth Shaft Tunnel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by Conduction Can not be predicted Convection Radiation Conduction Can not be predicted Convection Radiation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Preheating the primary air Transportation of coal Combustion of coal by supplying it around the burner Drying of coal Preheating the primary air Transportation of coal Combustion of coal by supplying it around the burner Drying of coal ANSWER DOWNLOAD EXAMIANS APP
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 non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of pulverised solid fuels Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of pulverised solid fuels ANSWER DOWNLOAD EXAMIANS APP
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