Power Systems A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 4.65 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. 4.65 Ω / phase. 6.06 Ω / phase. 2.26 Ω / phase. 8.06 Ω / phase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 4 20 8 10 4 20 8 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are three one six two three one six two ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) All of these √(1 + Kcsh)/Zs Zs*√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located At the beginning of the penstock. In between the penstock and runner. Near the surge tank. In between the runner exhaust and the tail race. At the beginning of the penstock. In between the penstock and runner. Near the surge tank. In between the runner exhaust and the tail race. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The annual depreciation of hydro power plant is about 20 - 25 %. 0.5 - 1.5 %. 10 - 15 %. 15 - 20 %. 20 - 25 %. 0.5 - 1.5 %. 10 - 15 %. 15 - 20 %. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS