Power Systems The function of reflector is to 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. reduce the speed of the neutrons. stop the chain reaction. none of above. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For some given transmission line the expression for voltage regulation is given by (Vs - Vr)/Vr *100%. Hence, None of these this must be a short line this expression is true for any line this may either be a medium line or short line None of these this must be a short line this expression is true for any line this may either be a medium line or short line ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is/are the methods of improving transient stability? Fast acting excitation control Fast acting governing system Dynamic breaking All of these Fast acting excitation control Fast acting governing system Dynamic breaking All of these ANSWER DOWNLOAD EXAMIANS APP
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 41.075 kV/phase 17.32 kV/phase 82.15 kV/phase 34.64 kV/phase 41.075 kV/phase 17.32 kV/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems A sort line with R/X ratio 1, the zero regulation is obtained when the power factor of the load is 0.5 unity 0.707 leading 0 leading 0.5 unity 0.707 leading 0 leading ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
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