Power Systems In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is 40.5 MVAr. 61.73 MVAr. 45.0 MVAr. 55.56 MVAr. 40.5 MVAr. 61.73 MVAr. 45.0 MVAr. 55.56 MVAr. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called damping time. coasting time. stopping time. settling time. damping time. coasting time. stopping time. settling time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 4 8 20 10 4 8 20 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for zero voltage regulation is cosφ = R/X cosφ = X/R tanφ = R/X tanφ = X/R cosφ = R/X cosφ = X/R tanφ = R/X tanφ = X/R ANSWER DOWNLOAD EXAMIANS APP
Power Systems Water hamming process in pen-stocks results in noise increases, pressure increases, velocity decreases. None of these noise increases. pressure increases. noise increases, pressure increases, velocity decreases. None of these noise increases. pressure increases. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is low specific speed turbine? Kaplan Pelton None of these Francis Kaplan Pelton None of these Francis ANSWER DOWNLOAD EXAMIANS APP
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