Power Systems In nuclear power plants which material is/are used as coolant? beryllium graphite liquid sodium All of these beryllium graphite liquid sodium All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines long transmission lines short transmission lines medium transmission lines All of these long transmission lines short transmission lines medium transmission lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements is/are true? Due to corona, All of these interference increases charging current increases power loss increases All of these interference increases charging current increases power loss increases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line? 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz 0.52 Hz 0.48 Hz -0.52 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peterson coil is used in case of transmission line for compensation of arcing grounds increase the voltage level improve power factor reduce ferranti effect compensation of arcing grounds increase the voltage level improve power factor reduce ferranti effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of low steam turbine mechanical efficiency high energy loss in condenser high energy loss in boilers low alternator efficiency low steam turbine mechanical efficiency high energy loss in condenser high energy loss in boilers low alternator efficiency ANSWER DOWNLOAD EXAMIANS APP
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