Power Systems If power P available from a hydroelectric plant is given by the formula P = 9.81QH, where Q is the flow rate through the turbine in l / s and H is the head in meters, then P will be unit of W. kWh. kJ / S. HP. W. kWh. kJ / S. HP. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ? 100 : 5 / √3. 200 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. 100 : 5 / √3. 200 : 5 / √3. 120 : 6 / √3. 150 : 4 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 40 Ω 33 Ω 52 Ω 28 Ω 40 Ω 33 Ω 52 Ω 28 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Bulk oil type CB Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB Air blast CB Sulphur hexafluoride CB Vacuum CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pelton wheel turbine is a high head turbine. low head turbine. medium head turbine. none of above. high head turbine. low head turbine. medium head turbine. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For load flow studies, What are the quantities specified at load bus are P and V P and Q V and δ δ and Q P and V P and Q V and δ δ and Q ANSWER DOWNLOAD EXAMIANS APP
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