Electrical Power Transmission MCQs Part 33

Electrical Engineering MCQs on Power Transmission

The current drawn by the line because of corona losses is

The current drawn by the line because of corona losses is

  1. Non-sinusoidal
  2. Sinusoidal
  3. Square
  4. Triangular

Correct answer: 1. Non-sinusoidal

The underground system cannot be operated above

The underground system cannot be operated above

  1. 11 V
  2. 33 V
  3. 440 V
  4. 66 V

Correct answer: 4. 66 V

A circuit is disconnected by isolators when

A circuit is disconnected by isolators when

  1. Circuit breaker is not open
  2. Line is energized
  3. Line is on full load
  4. There is no current in the line

Correct answer: 4. There is no current in the line

The loads on distributors systems are usually

The loads on distributors systems are usually

  1. Balanced
  2. Unbalanced
  3. Either of above
  4. None of above

Correct answer: 2. Unbalanced

Specific gravity of Aluminum is

Specific gravity of Aluminum is

  1. 1.5
  2. 2.7
  3. 4.5
  4. 7.8

Correct answer: 2. 2.7

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