Steam Boilers, Engines, Nozzles and Turbines Primary air is the air used to Provide air around burners for obtaining optimum combustion Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Air delivered by forced draft fan Provide air around burners for obtaining optimum combustion Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Transport and dry the coal Air delivered by forced draft fan ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of internal flue tubes in a Lancashire boiler compared to its shell is One-third One-half Two-fifth Two-fourth One-third One-half Two-fifth Two-fourth ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The value of the reheat factor varies from 1.2 to 1.6 1.08 to 1.10 1.02 to 1.06 1.6 to 2 1.2 to 1.6 1.08 to 1.10 1.02 to 1.06 1.6 to 2 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are limited to a maximum design working pressure of 17 kg/cm² 6 kg/cm 1 kg/cm 100 kg/cm² 17 kg/cm² 6 kg/cm 1 kg/cm 100 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a throttling process Steam pressure remains constant Steam enthalpy remains constant Steam entropy remains constant Steam temperature remains constant Steam pressure remains constant Steam enthalpy remains constant Steam entropy remains constant Steam temperature remains constant ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off ratio is the ratio of Clearance volume to the volume at cut-off Volume at cut-off to the clearance volume Swept volume to the volume at cut-off Volume at cut-off to the swept volume Clearance volume to the volume at cut-off Volume at cut-off to the clearance volume Swept volume to the volume at cut-off Volume at cut-off to the swept volume ANSWER DOWNLOAD EXAMIANS APP
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