Steam Boilers, Engines, Nozzles and Turbines Tertiary air is the air used to Cool the scanners Transport and dry the coal Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion Cool the scanners Transport and dry the coal Convert CO (formed in lower zone of furnace) into CO₂ at higher zone Provide air around burners for obtaining optimum combustion ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A wet vapor can be completely specified by Dryness fraction only Pressure and dryness fraction Temperature only Pressure only Dryness fraction only Pressure and dryness fraction Temperature only Pressure only ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines An economiser _________ the steam raising capacity of a boiler. None of these Increases Has no effect on Decreases None of these Increases Has no effect on Decreases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The dry saturated steam at very high pressure (150200 kg/cm²) when throttled to atmosphere will become Dry Superheated Remain dry saturated Wet Dry Superheated Remain dry saturated Wet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The value of the reheat factor varies from 1.2 to 1.6 1.02 to 1.06 1.08 to 1.10 1.6 to 2 1.2 to 1.6 1.02 to 1.06 1.08 to 1.10 1.6 to 2 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Incomplete combustion can be best judged by Measuring temperature of flue gases at exit of furnace Measuring carbon monoxide in flue gases Excess air in flue gases Smoky chimney exit Measuring temperature of flue gases at exit of furnace Measuring carbon monoxide in flue gases Excess air in flue gases Smoky chimney exit ANSWER DOWNLOAD EXAMIANS APP
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