Furnace Technology Overfire burning in a furnace is a phenomenon characterised by Supply of excess fuel Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air None of these Supply of excess fuel Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air None of these ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 90 25 10 65 90 25 10 65 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology If fuel and air are mixed ahead of the burner, it is called a/an __________ burner. Rotary Outside mixing type Diffusion Premix Rotary Outside mixing type Diffusion Premix ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Regenerators are installed in Neither A nor B Both A & B Coke ovens Open hearth furnace Neither A nor B Both A & B Coke ovens Open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In a furnace operation, which is not preheated? Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels Both A and B Neither A nor B Hydrocarbon containing fuel gases (e.g. coke oven gas, refinery gas etc.) Solid fuels 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 Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace Should be as low as possible i.e., 1 : 2 Should be 1:1 for a batch type furnace. Is the ratio of maximum to minimum permissible heat input rates Is normally much more for a continuous furnace as compared to a batch furnace ANSWER DOWNLOAD EXAMIANS APP
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