Furnace Technology Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of Graphite powder Thoria Beryllium Zircon powder Graphite powder Thoria Beryllium Zircon powder ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Out of the following fuels used in a furnace exhausting flue gas at a temperature of 600°C, the percentage stack loss will be maximum in case of complete combustion of Blast furnace gas with air Blast furnace gas with oxygen Furnace oil with air Furnace oil with oxygen Blast furnace gas with air Blast furnace gas with oxygen Furnace oil with air Furnace oil with oxygen ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In order to maintain a reducing atmosphere in a furnace, it should have None of these CO in flue gas High excess air No O₂ in flue gas None of these CO in flue gas High excess air No O₂ in flue gas ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the Dust concentration & nature of dust in waste gas Corrosive nature of the waste gas Quantity & temperature of waste gas All of these Dust concentration & nature of dust in waste gas Corrosive nature of the waste gas Quantity & temperature of waste gas All of these 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 45-50 44119 65-70 25-30 45-50 44119 65-70 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Ceramic recuperators (made of SiC) is economical, only when used for preheating combustion air above __________ °C. 1000 650 250 850 1000 650 250 850 ANSWER DOWNLOAD EXAMIANS APP
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