Power Systems Skin effect depends on conductivity frequency relative permeability All of these conductivity frequency relative permeability All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station plant load factor is defined as the ratio of average load to the peak load minimum load to average load minimum load to peak load the energy generated to that of maximum energy that could have been generated average load to the peak load minimum load to average load minimum load to peak load the energy generated to that of maximum energy that could have been generated ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following method is used for changing power factor from leading to lagging any of the above shunt reactor series capacitor shunt capacitor any of the above shunt reactor series capacitor shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 85% 88.2% 11.8% 15% 85% 88.2% 11.8% 15% ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following frequency control method tie line may be overloaded? parallel frequency flat frequency control All of these flat tie line control parallel frequency flat frequency control All of these flat tie line control ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to none of above. relieve water hammer pressure in the penstock. produce surge in the pipeline. supply water at constant pressure. none of above. relieve water hammer pressure in the penstock. produce surge in the pipeline. supply water at constant pressure. ANSWER DOWNLOAD EXAMIANS APP
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