Power Systems One atomic mass unit is equivalent to 251.2 MeV. 180.5 MeV. 120.4 MeV. 931.4 MeV. 251.2 MeV. 180.5 MeV. 120.4 MeV. 931.4 MeV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. air preheater. superheater. ash handling point. economizer. air preheater. superheater. ash handling point. economizer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.76 A. 14.7 mA. 1.476 A. 1 A. 14.76 A. 14.7 mA. 1.476 A. 1 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are All of these Cost of electrical energy per KWh is to be minimum Reliable power has to be available Flexible power has to be available. All of these Cost of electrical energy per KWh is to be minimum Reliable power has to be available Flexible power has to be available. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz 0.52 Hz -0.52 Hz 0.48 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems IF the time of operation of a relay for unity TMS is 10 sec then the time of operation for 0.5 TMS is 20 sec. 5 sec. none of these. 10 sec. 20 sec. 5 sec. none of these. 10 sec. ANSWER DOWNLOAD EXAMIANS APP
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