Power Systems Under over excitation synchronous phase modifier works as any of the above series capacitor shunt reactor shunt capacitor any of the above series capacitor shunt reactor shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following rotor is used in thermal power plants? salient pole rotor either of these squirrel cage rotor cylindrical rotor salient pole rotor either of these squirrel cage rotor cylindrical rotor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following insulator is practically used for railway crossings? string insulator strain insulator All of these pin insulator string insulator strain insulator All of these pin insulator ANSWER DOWNLOAD EXAMIANS APP
Power Systems By using guard ring in a transmission line, its string efficiency None of these increase remains unaffected decrease None of these increase remains unaffected decrease ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 22.5 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 22.5 electrical degrees/s² 125 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems What is the preferred type of circuit breaker(CB) to be installed in extra high voltage AC system? Bulk oil type CB Vacuum CB Sulphur hexafluoride CB Air blast CB Bulk oil type CB Vacuum CB Sulphur hexafluoride CB Air blast CB ANSWER DOWNLOAD EXAMIANS APP
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