Electrical Engineering MCQs on Power Transmission MCQs Part 25
Contents
The correct statement about corona loss is
The correct statement about corona loss is:
- Corona loss is more prominent in HVAC system
- Corona loss is more prominent in HVDC system
- Same in both cases
- 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
- 0
- 1
- Less than 1
- 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
- Air blast circuit breaker
- None of these
- Oil circuit breaker
- SF6 breaker
Correct answer: 4. SF6 breaker
The methods used for laying of underground cables
The methods used for laying of underground cables
- Direct laying
- Draw-in-system/Duct-pipe laying
- Both of these
- 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:
- Hold telephone lines
- Reduce sag
- Strengthen the pole
- None of these
Correct answer: 3. Strengthen the pole