Power Systems Which of the following faults is/are treated as external faults? Failure of excitation Failure of prime mover of the generator All of these Over voltage Failure of excitation Failure of prime mover of the generator All of these Over voltage ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is a reaction turbines Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. None of these. Pelton turbine and Francis turbine. Francis turbine and Kaplan turbine. Kaplan and Pelton turbine. None of these. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A buchholz relay is used for protection of a transformer against all internal faults nether 1 nor 2 protection of a transformer against all external faults both 1 and 2 protection of a transformer against all internal faults nether 1 nor 2 protection of a transformer against all external faults both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 200 Ω 800 Ω 0 Ω 400 Ω 200 Ω 800 Ω 0 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Calorific value of solid fuel is expressed as KCal / lt. KCal / gm. Cal / gm. Cal / lt. KCal / lt. KCal / gm. Cal / gm. Cal / lt. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 45 kV 40 kV 32 kV 36 kV 45 kV 40 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
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