Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a reaction turbine is (1 + sin²α)/2 sin²α (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) (1 + sin²α)/2 sin²α (1 + cos²α)/2 cos²α 2 sin²α/(1 + sin²α) 2 cos²α/(1 + cos²α) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure at which latent heat of vaporisation of water is zero, is 1 kg/cm² Below atmospheric pressure 225.6 kg/cm² 100 kg/cm² 1 kg/cm² Below atmospheric pressure 225.6 kg/cm² 100 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small steam plants is to Create vacuum in furnace Create vacuum at turbine exhaust Pump feed water Dose chemicals in feed water Create vacuum in furnace Create vacuum at turbine exhaust Pump feed water Dose chemicals in feed water ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially wet steam is 0.577 0.546 0.582 0.601 0.577 0.546 0.582 0.601 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylindrical shell of a Lancashire boiler has diameter from 1.5 to 2.5 m 1.25 to 2.25 m 1.75 to 2.75 m 1 to 2 m 1.5 to 2.5 m 1.25 to 2.25 m 1.75 to 2.75 m 1 to 2 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not the correct statement about moisture in coal? In some coals moisture may be present up to 40% It increases thermal efficiency Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% It increases thermal efficiency Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal ANSWER DOWNLOAD EXAMIANS APP
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