Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 50 ohms 5 ohms 500 ohms 0.5 ohm 50 ohms 5 ohms 500 ohms 0.5 ohm ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reator thermal energy is obtained from fusion of radioactive material. burning of fuel rods in oxygen. fission of radioactive material. all of above. fusion of radioactive material. burning of fuel rods in oxygen. fission of radioactive material. all of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The shape of the disc of an induction disc relay is none of these. elliptical. circular. spiral. none of these. elliptical. circular. spiral. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Recovery voltage in CB is equal to none of these. normal frequency 50 Hz rms voltage. arcing period voltage. transient voltage. none of these. normal frequency 50 Hz rms voltage. arcing period voltage. transient voltage. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. Use of high pressure. Reheat of steam an intermediate stages. All of these Use of steam for heating of boiler feed water. Use of high pressure. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always leading the arc current by 90°. lagging the arc current by 90°. in phase with the arc current. in phase opposition with the arc current. leading the arc current by 90°. lagging the arc current by 90°. in phase with the arc current. in phase opposition with the arc current. ANSWER DOWNLOAD EXAMIANS APP
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