Power Systems In Francis turbine runner, the number blades is usually of the order of 6 - 8. 16 - 24. 3 - 6. 12 - 14. 6 - 8. 16 - 24. 3 - 6. 12 - 14. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is more at the centre of the condutor current density is lower at the surface of the condutor current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the centre of the condutor current density is lower at the surface of the condutor current density is more at the surface of the condutor the distribution of AC current is uniform through the cross section of the conductor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0 leading unity 0.5 0.707 leading 0 leading unity 0.5 0.707 leading 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 MHz 290 kHz 29 kHz 2.9 kHz 29 MHz 290 kHz 29 kHz 2.9 kHz 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 8 20 4 10 8 20 4 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Per unit of any quantity is defined as actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in different units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in different units actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in different units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in different units ANSWER DOWNLOAD EXAMIANS APP
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