Furnace Technology In order to maintain an oxidising atmosphere in a furnace, it should have More of CO in flue gas Less of excess air More of CO₂ in flue gas More of excess air More of CO in flue gas Less of excess air More of CO₂ in flue gas More of excess air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is the most suitable for preheating combustion air above 650°C ? Metallic recuperator Ceramic recuperator None of these Regenerator Metallic recuperator Ceramic recuperator None of these Regenerator 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? None of these Waste heat boiler Regenerator Recuperator None of these Waste heat boiler Regenerator Recuperator ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The resistance furnace produces heat by the Combination of induced current and skin effect Electric arc struck between electrodes and the charge None of these Flow of current through a heating element Combination of induced current and skin effect Electric arc struck between electrodes and the charge None of these Flow of current through a heating element ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Operation of blast furnace stove is based on the principles of a __________ furnace. Neither A nor B Recuperative Regenerative Both A and B Neither A nor B Recuperative Regenerative Both A and B ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Turn down ratio of a burner 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 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 ANSWER DOWNLOAD EXAMIANS APP
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