Top 80+ Solved Transmission and Distribution MCQ Questions Answer

From 91 to 95 of 95

Q. Series capacitors on transmission lines are of little use when the load VARrequirement is

a. large

b. small

c. fluctuating

d. any of the above

  • b. small

Q. The voltage regulation in magnetic amplifier type voltage regulator is effected by

a. electromagnetic induction

b. varying the resistance

c. varying the reactance

d. variable transformer

  • c. varying the reactance

Q. When a conductor carries more current on the surface as compared to core, it is due to

a. permeability variation

b. corona

c. skin effect

d. unsymmetrical fault

  • c. skin effect

Q. The following system is not generally used

a. 1-phase 3 wire

b. 1-phase 4 wire

c. 3-phase 3 wire

d. 3-phase 4 wire

  • a. 1-phase 3 wire

Q. The skin effect of a conductor will reduce as the

a. resistivity of conductor material increases

b. permeability of conductor material increases

c. diameter increases

d. frequency increases

  • a. resistivity of conductor material increases
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