Power Systems Power transmission lines are transposed to reduce skin effect proximity effect ferranti effect radio interference skin effect proximity effect ferranti effect radio interference ANSWER DOWNLOAD EXAMIANS APP
Power Systems A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator? 0.1 0.001 10 1000 0.1 0.001 10 1000 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has an impedance of (2+j6) Ω has voltage regulation of 10% at a load power factor of 0.8 lag. Find the voltage regulation for a load of 0.6 lead -10% -6.92% 6.92% 10% -10% -6.92% 6.92% 10% ANSWER DOWNLOAD EXAMIANS APP
Power Systems The sequence components of the fault current are as follows : Ipositive = j1.5 pu, Inegative = − j0.5 pu, Izero = − j pu Which fault is this? LLG. LL. LG. LLLG. LLG. LL. LG. LLLG. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of reflector is to reduce the speed of the neutrons. stop the chain reaction. none of above. bounce back most of the neutrons that escape from the fuel core. reduce the speed of the neutrons. stop the chain reaction. none of above. bounce back most of the neutrons that escape from the fuel core. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The average thermal efficiency of a modern nuclear power plant is about 40 %. 80 %. 30 %. 60 %. 40 %. 80 %. 30 %. 60 %. ANSWER DOWNLOAD EXAMIANS APP