Power Systems An hydro-graph indicates the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. the average run off during the period. All of these the discharge at any time during the period under consideration. the maximum and minimum run off during the period. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance Xm - Xs 2Xs + Xm Xs - Xm Xs +2 Xm Xm - Xs 2Xs + Xm Xs - Xm Xs +2 Xm 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 130.2 MWhr 140 MWhr 120 MWhr 135.3 MWhr 130.2 MWhr 140 MWhr 120 MWhr 135.3 MWhr ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 400 Ω 420 Ω 840 Ω 210 Ω 400 Ω 420 Ω 840 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the tests performed for oil-filled and gas-filled cables ? All of these. Impulse tests. Thermal stability test. Load cycle tests. All of these. Impulse tests. Thermal stability test. Load cycle tests. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance Z(pu) is given by ZΩ* (MVA)b/((KV)²b *100) ZΩ* (MVA)b*100/(KV)²b ZΩ* (MVA)b/(KV)²b ZΩ* (kVA)b/(KV)²b ZΩ* (MVA)b/((KV)²b *100) ZΩ* (MVA)b*100/(KV)²b ZΩ* (MVA)b/(KV)²b ZΩ* (kVA)b/(KV)²b ANSWER DOWNLOAD EXAMIANS APP
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