Furnace Technology Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent. < 10 < 5 < 2 < 8 < 10 < 5 < 2 < 8 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Ceramic recuperator Metallic recuperator Regenerator None of these Ceramic recuperator Metallic recuperator Regenerator None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Rotary kilns are used in the Both A and B Cement manufacture Neither A nor B Calcination of limestone & dolomite Both A and B Cement manufacture Neither A nor B Calcination of limestone & dolomite ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 1050 1250 750 350 1050 1250 750 350 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Size of the furance Emissivity of the refactory walls Use of waste heat recovery equipments Thickness of the stock Size of the furance Emissivity of the refactory walls Use of waste heat recovery equipments Thickness of the stock ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a muffle furnace, the muffle Assists in temperature equalisation in the charge Permits the use of controlled atmosphere for the protection of stock Retards the heat transfer All of these Assists in temperature equalisation in the charge Permits the use of controlled atmosphere for the protection of stock Retards the heat transfer All of these ANSWER DOWNLOAD EXAMIANS APP
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