Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) None of the listed here ηS = ηN / ηB ηS = ηB × ηN ηS = ηB / ηN None of the listed here ηS = ηN / ηB ηS = ηB × ηN ηS = ηB / ηN ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than 5 kg/cm² Atmospheric pressure 7580 kg/cm² 10 kg/cm² 5 kg/cm² Atmospheric pressure 7580 kg/cm² 10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The isentropic enthalpy drop in moving blade is two-third of the isentropic enthalpy drop in fixed blades of a turbine. The degree of reaction will be 0.56 0.67 0.4 1.67 0.56 0.67 0.4 1.67 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A wet vapor can be completely specified by Pressure only Temperature only Pressure and dryness fraction Dryness fraction only Pressure only Temperature only Pressure and dryness fraction Dryness fraction only ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In locomotive boiler, maximum steam pressure is limited to 18 kg/cm² 5 kg/cm² 1 kg/cm² 10 kg/cm² 18 kg/cm² 5 kg/cm² 1 kg/cm² 10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The average value of diagram factor lies between 0.5 to 0.65 0.65 to 0.9 0.8 to 1.2 0.2 to 0.5 0.5 to 0.65 0.65 to 0.9 0.8 to 1.2 0.2 to 0.5 ANSWER DOWNLOAD EXAMIANS APP