Steam Boilers, Engines, Nozzles and Turbines Secondary air is the air used to Air delivered by induced draft fan Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Provide air around burners for obtaining optimum combustion Air delivered by induced draft fan Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of flue tube in a Cornish boiler is _________ that of the shell. Three-fifth One-third One-fourth Two-fifth Three-fifth One-third One-fourth Two-fifth ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expanding steam to a very low pressure (high vacuum) in steam engines is Uneconomical Essential Desirable Economical Uneconomical Essential Desirable Economical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off ratio is the ratio of Volume at cut-off to the swept volume Volume at cut-off to the clearance volume Swept volume to the volume at cut-off Clearance volume to the volume at cut-off Volume at cut-off to the swept volume Volume at cut-off to the clearance volume Swept volume to the volume at cut-off Clearance volume to the volume at cut-off ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of fire tube of Cornish boiler compared to its shell is One half One fourth One fifth One third One half One fourth One fifth One third ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of Cornish boiler varies from 1 to 2 m 0.5 to 1 m 1.25 to 2.5 m 2 to 3 m 1 to 2 m 0.5 to 1 m 1.25 to 2.5 m 2 to 3 m ANSWER DOWNLOAD EXAMIANS APP
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