1. The point which should be considered while designing transmission systems:

- Selection of transmission route
- Expansion planning
- Network analysis
- Observation of Reliability
- All of these

Correct answer: 5. All of these

2. Short transmission lines are modeled by:

- Series resistance and series inductance
- Series resistance and series capacitance
- Series resistance and shunt capacitance
- Series resistance, series capacitance, and series inductance

Correct answer: 1. Series resistance and series inductance

3. Shunt capacitance of short transmission lines is:

- Very high
- Negligible
- 0.85 times the long lines
- 0.46 times the medium lines
- Both 3 and 4

Correct answer: 2. Negligible

4. The best conductor for transmission lines in terms of conductivity:

- Copper
- Aluminum
- Iron
- Steel

Correct answer: 1. Copper

5. The number of wire strands in a 5 layer transmission line:

- 16
- 20
- 47
- 61
- 91

Correct answer: 4. 61

Solution: Number of stands = 3(n^{2} – n) + 1

6. Bundled conductors are recommended above:

- 67 kV
- 120 kV
- 230 kV
- 400 kV

Correct answer: 3. 230 kV

7. The effective radius of multiple strand wire is calculated using:

- Kelvin law
- Guy’s theorem
- Transposition
- Proximity theorem

Correct answer: 2. Guy’s theorem

8. Ozone generation due to corona effect is undesired because:

- It corrodes the conductor
- It gives poor visual effect
- It smells bad
- It increases the effective area of the conductor

Correct answer: 1. It corrodes the conductor

9. The discharge path in a punctured insulator:

- From the first disc to the third disc
- Is through air gaps
- Throughout the body of the conductor
- None of above

Correct answer: 3. Throughout the body of the conductor

Next Electrical Power Transmission MCQs Part 10

List of All: Electrical Power Transmission MCQs

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