Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Beryllium Zircon powder Graphite powder Thoria Beryllium Zircon powder Graphite powder Thoria 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 Convection Can not be predicted Conduction Radiation Convection Can not be predicted Conduction Radiation 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. 750 350 1050 1250 750 350 1050 1250 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a natural draft furnace? Sintering furnace Blast furnace stoves Power plant boilers None of these Sintering furnace Blast furnace stoves Power plant boilers None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 65 25 90 10 65 25 90 10 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Calcination of limestone to produce lime is done in a __________ kiln. Vertical shaft Tunnel Rotary Both B and C Vertical shaft Tunnel Rotary Both B and C ANSWER DOWNLOAD EXAMIANS APP
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