Power Systems The commercial sources of energy are fossile fuels and radioactive substances. none of above. solar, wind, biomass. wood, animal wastes and agricultural wastes. fossile fuels and radioactive substances. none of above. solar, wind, biomass. wood, animal wastes and agricultural wastes. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Communications lines are treated as short transmission lines any of the above long transmission lines medium transmission lines short transmission lines any of the above long transmission lines medium transmission lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Sulphur hexafluoride CB Air blast CB Vacuum CB Bulk oil type CB Sulphur hexafluoride CB Air blast CB Vacuum CB Bulk oil type CB ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 4 MJ/MVA 8 MJ/MVA 2 MJ/MVA 6 MJ/MVA 4 MJ/MVA 8 MJ/MVA 2 MJ/MVA 6 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? Zs/√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs*√(1 + Kcsh) Zs/√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs*√(1 + Kcsh) ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a neutral point of 3 - Φ system is directly connected to earth then it has what type of grounding? Resistance. Solid. Peterson coil. Reactance. Resistance. Solid. Peterson coil. Reactance. ANSWER DOWNLOAD EXAMIANS APP
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