Furnace Technology The reason for excessive clinker formation in gas producers is the 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 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 20 50 80 5 20 50 80 5 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing? Erosion of induced draft fan blades Higher power consumption in its transportation Excessive fly ash discharge from the stack Ash disposal problem Erosion of induced draft fan blades Higher power consumption in its transportation Excessive fly ash discharge from the stack Ash disposal problem ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Furnace pressure is normally controlled by regulating the Air pressure Damper Fuel gas pressure Speed of I.D. fan Air pressure Damper Fuel gas pressure Speed of I.D. fan ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the Difference in density between hot and cold gases All of these Change in volume during a change of temperature Furnace pressure in conjunction with draft in flues Difference in density between hot and cold gases All of these Change in volume during a change of temperature Furnace pressure in conjunction with draft in flues ANSWER DOWNLOAD EXAMIANS APP
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