1000+ Power System Objective Questions and Answers Pdf - 2

Question: 6

The charging current in a transmission line

(A) leads the voltage by 45°

(B) leads the voltage by 90°

(C) lags the voltage by 90°

(D) leads the voltage by 180°

Question: 7

For equilateral spacing of conductors of an untransposed 3-phase line, we have

(A) unbalanced receiving end voltage and communication interference

(B) balanced receiving end voltage and communication interference

(C) unbalanced receiving end voltage and no communication interference

(D) balanced receiving end voltage and no communication interference

Question: 8

For high voltage transmission lines, conductors are suspended from towers so as to

(A) reduce wind and snow effect

(B) reduces clearance from ground

(C) take care of increase in length

(D) increase clearance from ground

Question: 9

Full load compensation in a line requires

(A) shunt reactors

(B) series capacitors

(C) transformers

(D) shunt capacitors

Question: 10

Current chopping is due to

(A) interruption of bolted faults

(B) interruption of low inductive currents

(C) interruption of unity power factor loads

(D) interruption of heavy capacitive elements