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 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR increases decreases remains unaffected None of these increases decreases remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The draft tube is provided to reduce the effect of water hammer. raise the water surface of the stream to create an artificial head. increase the acting head on the water wheel. None of these reduce the effect of water hammer. raise the water surface of the stream to create an artificial head. increase the acting head on the water wheel. None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The most suitable circuit breaker for short line fault without switching resistor is oil circuit breaker. SF6 breaker. none of these. air blast circuit breaker. oil circuit breaker. SF6 breaker. none of these. air blast circuit breaker. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following power plants normally operage at high speeds Hydro electric. Petrol engine. Diesel engine. Thermal. Hydro electric. Petrol engine. Diesel engine. Thermal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A moderator material should have may be any of the above. None of these small atomic mass. large atomic mass. may be any of the above. None of these small atomic mass. large atomic mass. ANSWER DOWNLOAD EXAMIANS APP
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