Power Systems A 1- phase transmission line operating at 30 kV has radius of 1 cm and distance between conductors is 0.5 m. Assume m = δ =1, g = 21 kV/cm and frequency f = 50 Hz. Find the critical disruptive voltage? 82.15 kV/phase 34.64 kV/phase 17.32 kV/phase 41.075 kV/phase 82.15 kV/phase 34.64 kV/phase 17.32 kV/phase 41.075 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called stopping time. damping time. settling time. coasting time. stopping time. damping time. settling time. coasting time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? All of these To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean To collect the dust particles from the flue gases All of these To remove dust particles setting on the bus bar conductors in the station switch yard To keep the air heaters clean To collect the dust particles from the flue gases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Thermal shielding is provided to absorb the fast neutron. protected the operating personal from exposure to radiations. All of these prevent the reactor wall from getting heated. absorb the fast neutron. protected the operating personal from exposure to radiations. All of these prevent the reactor wall from getting heated. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? pumped storage hydro power plant gas based thermal power plant nuclear plant coal based thermal power plant pumped storage hydro power plant gas based thermal power plant nuclear plant coal based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 50 MW a load factor of 60 %, a plant capacity factor of 45 % and if the plant while running as per schedule were fully loaded. The daily energy produced will be 720 MW. 730 MW. 740 MW. 710 MW. 720 MW. 730 MW. 740 MW. 710 MW. ANSWER DOWNLOAD EXAMIANS APP
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