a) 40 to 60 Ω b) 100 to 120 Ω c) 400 to 600 Ω d) 1000 to 1500 Ω Ans: (a)
a) Lower b) Higher c) The same d) May be lower or higher Ans: (a)
a) Higher than disruptive critical voltage b) Higher than Curie voltage c) Equal to disruptive voltage d) None of these Ans: (a)
a) ACSR b) Unstranded wire c) Stranded wire d) Transposed wire Ans: (b)
a) System faults b) Radio interference c) Insulation failure d) None of these Ans: (b)
a) Constant for all the locations of fault b) Lower than the value if fault occurs away from the relay c) Higher than the value if fault occurs away from the relay d) May be lower or higher than the value if fault occurs away from the relay Ans: (b)
a) (Base MVA)/(P.U.Xeq) b) Base MVA × P.U. Xeq c) (Base MVA)/((P.U.Xeq)2 ) d) None of these Ans: (a)
a) Zero b) Constant c) Increases with load d) Decreases with load Ans: (b)
a) Increases b) Decreases c) Remain unchanged d) May increase or decrease Ans: (b)
a) Reduce the sag b) Hold the telephone lines c) Strengthen the pole d) None of these Ans: (c)