Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Regenerator Ceramic recuperator None of these Metallic recuperator Regenerator Ceramic recuperator None of these Metallic recuperator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent. 65 99 50 85 65 99 50 85 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Zircon powder Thoria Beryllium Graphite powder Zircon powder Thoria Beryllium Graphite powder ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an __________ furnace. Underfired Sidefired Recirculating Covered Underfired Sidefired Recirculating Covered ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which furnace employs preheating, heating and soaking zones? Cupola Reheating furnace Open hearth furnace Soaking pit Cupola Reheating furnace Open hearth furnace Soaking pit ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. 25-30 44119 65-70 45-50 25-30 44119 65-70 45-50 ANSWER DOWNLOAD EXAMIANS APP
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