Furnace Technology An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace. None of these Arc Low frequency induction Resistance None of these Arc Low frequency induction Resistance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In low or standard frequency induction furnace, heat is produced by the Current flow through a heating element Induction and resistance None of these Combination of induced current and skin effect Current flow through a heating element Induction and resistance None of these Combination of induced current and skin effect 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 More Either more or less; depends on the flue gas density Answer: Option B Less Same More Either more or less; depends on the flue gas density Answer: Option B Less ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ is an indirectly heated furnace. Soaking pit Reheating furnace Open hearth furnace Muffle furnace Soaking pit Reheating furnace Open hearth furnace Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner Should be as low as possible i.e., 1 : 2 Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates Should be as low as possible i.e., 1 : 2 Is normally much more for a continuous furnace as compared to a batch furnace Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The amount of combustible escaping uncon-sumed from the furnace, depends upon the All of these Air supplied and furnace temperature Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Burner design (thoroughness of mixing versus stratification) All of these Air supplied and furnace temperature Air preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction) Burner design (thoroughness of mixing versus stratification) ANSWER DOWNLOAD EXAMIANS APP
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