Furnace Technology In low or standard frequency induction furnace, heat is produced by the Induction and resistance Current flow through a heating element Combination of induced current and skin effect None of these Induction and resistance Current flow through a heating element Combination of induced current and skin effect None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In producer gas making furnace, steam is added along with air to mainly control the V. of producer gas Temperature of producer gas Tar content in producer gas Fusion of coal ash & clinker formation V. of producer gas Temperature of producer gas Tar content in producer gas Fusion of coal ash & clinker formation ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Is the ratio of maximum to minimum permissible heat input rates Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Should be as low as possible i.e., 1 : 2 Is the ratio of maximum to minimum permissible heat input rates Should be 1:1 for a batch type furnace. Is normally much more for a continuous furnace as compared to a batch furnace Should be as low as possible i.e., 1 : 2 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In which of the waste heat recovery equipment, the flow of flue gas and air is alternately reversed after a fixed interval of time? Waste heat boiler None of these Regenerator Recuperator Waste heat boiler None of these Regenerator Recuperator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Power required in case of forced draught as compared to induced draught (for the same draught produced) is 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 More ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Drying of coal Combustion of coal by supplying it around the burner Transportation of coal Preheating the primary air Drying of coal Combustion of coal by supplying it around the burner Transportation of coal Preheating the primary air ANSWER DOWNLOAD EXAMIANS APP
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