a) 18% b) 19% c) 20% d) 21% Ans: (d)
a) Voltage of the line b) Volume of the line c) Current in the line d) Physical configuration Ans: (d)
a) Increases b) Decreases c) Remain same d) Increases proportionately Ans: (b)
a) Self inductance b) Mutual inductance c) Internal inductance d) None of these Ans: (c)
a) Strengthen the pole b) Hold telephone cables c) Keep the wires from sagging d) None of these Ans: (a)
a) Insulation failure b) Faults in line c) Radio interference d) All of these Ans: (c)
a) 1/2 of the outer conductor b) 1/4 of the outer conductor c) 1/3 of the outer conductor d) None of these Ans: (a)
a) Potential difference between the conductors b) Current in the conductors c) Both (a) and (b) d) None of these Ans: (a)
a) Star-star b) Star-delta c) Delta-star d) Delta-delta Ans: (b)
a) That of phase conductor b) 1/2 times that of phase conductor c) 1/4 times that of phase conductor d) 2 times that of phase conductor Ans: (c)