Electrical Power Transmission MCQs Part 25

Electrical Engineering MCQs on Power Transmission MCQs Part 25

The correct statement about corona loss is

The correct statement about corona loss is:

  1. Corona loss is more prominent in HVAC system
  2. Corona loss is more prominent in HVDC system
  3. Same in both cases
  4. None of the above

Correct answer: 1. Corona loss is more prominent in HVAC system

The value of diversity factor is

The value of diversity factor is

  1. 0
  2. 1
  3. Less than 1
  4. Greater than 1

Correct answer: 4. Greater than 1

The most suitable circuit breaker for short line fault without switching resistor is

The most suitable circuit breaker for short line fault without switching resistor is

  1. Air blast circuit breaker
  2. None of these
  3. Oil circuit breaker
  4. SF6 breaker

Correct answer: 4. SF6 breaker

The methods used for laying of underground cables

The methods used for laying of underground cables

  1. Direct laying
  2. Draw-in-system/Duct-pipe laying
  3. Both of these
  4. None of these

Correct answer: 3. Both of these

Explanation: Apart from above two, the solid system/through laying is also used for laying of underground cables.

Guy wire is used with transmission line pole in order to

Guy wire is used with transmission line pole in order to:

  1. Hold telephone lines
  2. Reduce sag
  3. Strengthen the pole
  4. None of these

Correct answer: 3. Strengthen the pole

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