Power Systems If the percentage reactance of an element is 20 % and the full load current is 50 Amp, the short circuit current will be 350 Amp. 250 Amp. 300 Amp. 200 Amp. 350 Amp. 250 Amp. 300 Amp. 200 Amp. ANSWER DOWNLOAD EXAMIANS APP
Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency? 29 kHz 29 MHz 290 kHz 2.9 kHz 29 kHz 29 MHz 290 kHz 2.9 kHz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Radio interference occur in telecommunication line due to electro magnetic induction both 1 and 2 nether 1 nor 2 electro static induction electro magnetic induction both 1 and 2 nether 1 nor 2 electro static induction ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Power transformer. Potential transformer. Instrument transformer. Current transformer. Power transformer. Potential transformer. Instrument transformer. Current transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers) N = 3x²-2x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²+3x+1 N = 3x²-2x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²+3x+1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reator thermal energy is obtained from burning of fuel rods in oxygen. fission of radioactive material. all of above. fusion of radioactive material. burning of fuel rods in oxygen. fission of radioactive material. all of above. fusion of radioactive material. ANSWER DOWNLOAD EXAMIANS APP
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