Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? both 1 and 2 Asynchronous line No need of same frequency for exchange of power Synchronous line both 1 and 2 Asynchronous line No need of same frequency for exchange of power Synchronous line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which device is used for protection of equipment from from damage caused by overload or short circuit? current transformer lightning arrester CVT circuit breaker current transformer lightning arrester CVT circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following produces the radio interference in communication lines? None of these electro magnetic induction electro static induction both 1 and 2 None of these electro magnetic induction electro static induction both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems One atomic mass unit is equivalent to 180.5 MeV. 251.2 MeV. 931.4 MeV. 120.4 MeV. 180.5 MeV. 251.2 MeV. 931.4 MeV. 120.4 MeV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In Francis turbine runner, the number blades is usually of the order of 6 - 8. 12 - 14. 3 - 6. 16 - 24. 6 - 8. 12 - 14. 3 - 6. 16 - 24. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 85% 15% 11.8% 88.2% 85% 15% 11.8% 88.2% ANSWER DOWNLOAD EXAMIANS APP
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