Power Systems Rankine cycle efficiency of a steam power plant is of 45 - 80 %. 60 - 80 %. 30 - 45 %. 20 - 30 %. 45 - 80 %. 60 - 80 %. 30 - 45 %. 20 - 30 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following transformer is used in sub station for operating a protective relay? All of these capacitor voltage transformer auto transformer distribution transformer All of these capacitor voltage transformer auto transformer distribution transformer ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Rankine cycle, the work output from a turbine is given by change of enthalpy between inlet and outlet. change in internal energy between inlet and outlet. change in temperature between inlet and outlet. change of entropy between inlet and outlet. change of enthalpy between inlet and outlet. change in internal energy between inlet and outlet. change in temperature between inlet and outlet. change of entropy between inlet and outlet. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. None of these increase the acting head on the water wheel. raise the water surface of the stream to create an artificial head. reduce the effect of water hammer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Objectives of power system is/are Cost of electrical energy per KWh is to be minimum both 1 and 2 nether 1 nor 2 Rated voltage and frequency has to be supplied to the consumers Cost of electrical energy per KWh is to be minimum both 1 and 2 nether 1 nor 2 Rated voltage and frequency has to be supplied to the consumers ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 16 MJ/MVA 8 MJ/MVA 2 MJ/MVA 4 MJ/MVA 16 MJ/MVA 8 MJ/MVA 2 MJ/MVA 4 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
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