Power Systems Lightning arresters are used to protect electrical equipment against direct strokes of lightning. over currents due to lightning stroke. over voltages due to indirect lightning stroke. power frequency of over voltages. direct strokes of lightning. over currents due to lightning stroke. over voltages due to indirect lightning stroke. power frequency of over voltages. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power transmission lines are transposed to reduce ferranti effect radio interference skin effect proximity effect ferranti effect radio interference skin effect proximity effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems Non-commercial sources of energy are solar, wind and biomass. wood, animal wastes and agricultural wastes. None of these fossil fuel, hydro power and nuclear power. solar, wind and biomass. wood, animal wastes and agricultural wastes. None of these fossil fuel, hydro power and nuclear power. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 8 2 6 5 8 2 6 5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge tank is kept very close to the spill way turbine pen stock generator spill way turbine pen stock generator ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of All of these medium transmission lines only long transmission lines only short transmission lines only All of these medium transmission lines only long transmission lines only short transmission lines only ANSWER DOWNLOAD EXAMIANS APP
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