Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 99 50 65 85 99 50 65 85 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Calcination of limestone to produce lime is done in a __________ kiln. Rotary Both B and C Vertical shaft Tunnel Rotary Both B and C Vertical shaft Tunnel ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Example of an indirectly heated furnace is Neither A nor B Muffle furnace Hood annealing furnace Both A and B Neither A nor B Muffle furnace Hood annealing furnace Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Hearth furnaces are not used for Melting Roasting None of these Reheating Melting Roasting None of these Reheating ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 1000 850 250 650 1000 850 250 650 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues All of these Change in volume during a change of temperature Difference in density between hot and cold gases Furnace pressure in conjunction with draft in flues All of these Change in volume during a change of temperature ANSWER DOWNLOAD EXAMIANS APP
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