Steam Boilers, Engines, Nozzles and Turbines In an experiment to determine dryness fraction of steam, the mass of water separated was 1.2 kg in 15 mts. and the mass of steam passed out in same time was 4.8 kg. Dryness fraction is 0.5 0.4 0.25 0.8 0.5 0.4 0.25 0.8 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Increasing the expansion ratio Increasing exhaust pressure Decreasing initial steam pressure and temperature Decreasing exhausts pressure Increasing the expansion ratio Increasing exhaust pressure Decreasing initial steam pressure and temperature Decreasing exhausts pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines While steam expands in turbines, theoretically the entropy Remains constant Decreases Behaves unpredictably Increases Remains constant Decreases Behaves unpredictably Increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Stoichiometric quantity of air is the Air required for optimum combustion so as to have reasonable excess air Air required to convert CO into CO₂ Air required for complete combustion of fuel with no excess air Air present in atmosphere at NTP conditions Air required for optimum combustion so as to have reasonable excess air Air required to convert CO into CO₂ Air required for complete combustion of fuel with no excess air Air present in atmosphere at NTP conditions ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Lancashire boiler varies from 9 to 10 m 6 to 7 m 7.25 to 9 m 5 to 6 m 9 to 10 m 6 to 7 m 7.25 to 9 m 5 to 6 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Gusset stays in a boiler are provided to Avoid explosion in furnace Prevent the bulging of flat surfaces Support furnace freely from top Prevent leakage of hot flue gases Avoid explosion in furnace Prevent the bulging of flat surfaces Support furnace freely from top Prevent leakage of hot flue gases ANSWER DOWNLOAD EXAMIANS APP
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