Power Systems Which of following power plants is free from environmental problem Nuclear. Diesel engine. Hydroelectric. Steam. Nuclear. Diesel engine. Hydroelectric. Steam. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is usually employed for protection of short transmission lines only medium transmission lines only any line long transmission lines only short transmission lines only medium transmission lines only any line long transmission lines only ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 50 Hz 0.48 Hz 0.52 Hz -0.52 Hz 50 Hz 0.48 Hz 0.52 Hz -0.52 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the disadvantages of phase modifiers? It requires more maintenance because of running equipment It consumes both active and reactive power All of these Initial cost of synchronous phase modifier is higher It requires more maintenance because of running equipment It consumes both active and reactive power All of these Initial cost of synchronous phase modifier is higher ANSWER DOWNLOAD EXAMIANS APP
Power Systems Half life is defined as the time required for full of atoms in a specimen disintegrate. the time required for one half of isotope to decay. none of above. the time required to spiliting of a heavy nucleus. the time required for full of atoms in a specimen disintegrate. the time required for one half of isotope to decay. none of above. the time required to spiliting of a heavy nucleus. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of higher transmission voltage is/are Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these Power transfer capability of the transmission line is increased Area of cross section and volume of the conductor is reduced Transmission line losses are reduced All of these ANSWER DOWNLOAD EXAMIANS APP
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