Furnace Technology Thermal efficiency of an open hearth furnace may be about __________ percent. 20 50 5 80 20 50 5 80 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Power required in case of forced draught as compared to induced draught (for the same draught produced) is More Same Less Either more or less; depends on the flue gas density Answer: Option B More Same Less Either more or less; depends on the flue gas density Answer: Option B 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. 44119 25-30 65-70 45-50 44119 25-30 65-70 45-50 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by Increasing the draft in the furnace Preheating the combustion air Preheating the fuel gas Oxygen enrichment of combustion air Increasing the draft in the furnace Preheating the combustion air Preheating the fuel gas Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Waste heat from the outgoing flue gases in a thermal power plant is recovered by a/an Economiser All of these Air preheater Steam superheater Economiser All of these Air preheater Steam superheater ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the Burner design (thoroughness of mixing versus stratification) Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature All of these Burner design (thoroughness of mixing versus stratification) Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Air supplied and furnace temperature All of these ANSWER DOWNLOAD EXAMIANS APP
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