Power Systems Length of the cable is doubled, its capacitance C will be doubled. unchanged. one-fourth. one-half. doubled. unchanged. one-fourth. one-half. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the approximate efficiency of a normal thermal power station? 20-25% 45-55% 60-70% 30-40% 20-25% 45-55% 60-70% 30-40% ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable? Vacuum CB. Oil CB. Any of these. Air blast CB. Vacuum CB. Oil CB. Any of these. Air blast CB. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 90° 36° 42° 45° 90° 36° 42° 45° ANSWER DOWNLOAD EXAMIANS APP
Power Systems Galvanised steel is generally used as stray wire. All of these earth wire. structural components. stray wire. All of these earth wire. structural components. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are two six one three two six one three ANSWER DOWNLOAD EXAMIANS APP