a) True b) False Ans: (a)
a) Single phase motor only b) Two-phase motors only c) Two single phase motor running in parallel d) Three phase motors Ans: (d)
a) Location of PT b) Location of CT c) Relay’s size d) Relay’s sensitivity Ans: (b)
a) Step-down transformer b) Relays c) Switchgear d) Lightning arresters Ans: (d)
a) Less than the impedance of healthy line b) More than the impedance of healthy line c) Equal to the impedance of the healthy line d) None of the above Ans: (a)
a) Resistance b) Inductance c) Reactance d) Capacitance Ans: (d)
a) True b) False Ans: (a)
a) High resistance b) Low resistance c) High impedance d) Low impedance Ans: (b)
a) 2.5% b) 5% c) ±5% d) ±2.5% Ans: (c)
a) Transformers b) Shunt capacitors c) Series capacitors d) Electronic amplifiers e) Synchronous conductors Ans: (e)