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)

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