Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 5.353 pu 5 pu 7 pu 3.535 pu 5.353 pu 5 pu 7 pu 3.535 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflector of a nuclear reactor are made up of cast iron. steel. boron. beryllium. cast iron. steel. boron. beryllium. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are All of these Flexible power has to be available. Reliable power has to be available Cost of electrical energy per KWh is to be minimum All of these Flexible power has to be available. Reliable power has to be available Cost of electrical energy per KWh is to be minimum ANSWER DOWNLOAD EXAMIANS APP
Power Systems One million cubic meters of water is stored in a reservoir feeding a water turbine. The density of water is 993 kg/m³. If the centre of mass of water is 50 meters above the turbine and losses are negligible, the energy produced by that volume of water is 140 MWhr 130.2 MWhr 120 MWhr 135.3 MWhr 140 MWhr 130.2 MWhr 120 MWhr 135.3 MWhr ANSWER DOWNLOAD EXAMIANS APP
Power Systems If we increase the spacing between the phase conductors, the value of line inductance None of these increase decrease remains unaffected None of these increase decrease remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Power Systems Operating cost of thermal power station is less than that of hydroelectric power plant. less than that of diesel power plant. is the same as that of nuclear power plant. less than that of nuclear power plant. less than that of hydroelectric power plant. less than that of diesel power plant. is the same as that of nuclear power plant. less than that of nuclear power plant. ANSWER DOWNLOAD EXAMIANS APP
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