Components of Transmission Lines MCQ

Transmission lines carry the bulk of electricity from one place to another. Transmission lines contain conductors, insulators, protection devices, and transformers.

MCQ on Transmission line components

Guying is used:

  1. When a pole is not strong enough
  2. When transmission lines are in high lighting environments
  3. When HVDC transmission is used
  4. With three-phase systems

Correct answer: 4. With three-phase systems

Most commonly used material for transmission lines

  1. Aluminum only
  2. ACSR
  3. Steel only
  4. Steel + Copper

Correct answer: 2. ACSR

The topmost conductor on transmission lines is:

  1. For telecom lines
  2. Earth
  3. For mechanical support only

Correct answer: 2. Earth

For 765 kV which type of insulator is recommended:

  1. Suspension type
  2. Pin type
  3. Suspension type
  4. All of these

Correct answer: 3. Suspension type

String efficiency can be improved using:

  1. Longer cross arms
  2. By using a guard ring
  3. By grading the insulators
  4. All of these

Correct answer: 4. All of these

Leave a Comment