Electrical Engineering MCQs on Power Transmission
Contents
Pressure cables are usually not used beyond
Pressure cables are usually not used beyond
- 11 kV
- 132 kV
- 33 kV
- 66 kV
Correct answer: 4. 66 kV
The relative permittivity of rubber is
The relative permittivity of rubber is
- Between 12 and 14
- Between 2 and 3
- Between 5 and 6
- Between 8 and 10
Correct answer: 2. Between 2 and 3
Polyethylene has poor dielectric and ageing properties
Polyethylene has poor dielectric and ageing properties
- FALSE
- TRUE
Correct answer: 1. FALSE
Surge resistance of cable is
Surge resistance of cable is
- 100 ohms
- 20 ohms
- 5 ohms
- 50 ohms
Correct answer: 4. 50 ohms
Solid type cables are considered unreliable beyond 66 kV since
Solid type cables are considered unreliable beyond 66 kV since
- Corona loss between conductor and sheath material exist
- Insulation may melt due to higher temperature
- Skin effect dominates on the conductor
- There is a danger of breakdown of insulation due to the presence of voids
Correct answer: 4. There is a danger of breakdown of insulation due to the presence of voids