Power Systems An impulse turbine is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. always operates submerged. is most suited for low head and high discharge power plants. makes use of a draft tube. operates by initial complete conversion to kinetic energy. always operates submerged. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 86%% 50% 90% 75% 86%% 50% 90% 75% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always in phase opposition with the arc current. in phase with the arc current. leading the arc current by 90°. lagging the arc current by 90°. in phase opposition with the arc current. in phase with the arc current. leading the arc current by 90°. lagging the arc current by 90°. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydraulic turbine having rated speed of 250 rpm is connected to a synchronous generator. In order to produce power at 50 Hz, the numbers of pole are required in the generator 6. 12. 24. 16. 6. 12. 24. 16. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Due to proximity effect, the increase in conductor resistance is not negligible in underground cable communication lines overhead transmission lines All of these underground cable communication lines overhead transmission lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of following materials can be used as coolant Heavy water. Helium. CO2. Any of above. Heavy water. Helium. CO2. Any of above. ANSWER DOWNLOAD EXAMIANS APP
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