Electrical Power Transmission MCQs Multiple Choice Questions and Answers, Objective Questions and Answers

Electrical Power Transmission MCQs

1. Sort the EHV class of voltages:

1. 66 kV-660 kV
2. 345 kV-765 kV
3. 100 kV-1000 kV
4. 110 kV-1100 kV

Ans: 2

2. The surge impedance of a transmission line is defined as:

1. √(L/C)
2. √LC
3. √(L + C)
4. √(C – L)

Ans: 1

3. Voltage regulation of a well-designed transmission line is expected to be:

1. Low
2. Medium
3. High
4. Very high

Ans: 1

4. Compare to solid transmission conductor, the stranded conductor has _________ skin effect:

1. Greater
2. Smaller

Ans: 1

5. Bundled conductors are used in:

1. HVDC lines
2. HVAC lines
3. Both of these
4. None of these

Ans: 3

6. The transmission line conductors are made of:

1. Copper
2. Gold
3. ACSR
4. Aluminum

Ans: 3

7. The major advantage associated with the high voltages:

1. The losses are reduced to a negligible extent
2. Power transfer capability is improved
3. Area of cross-section is reduced
4. All of these

Ans: 4

8. The correct statement about corona and surge transients:

1. Corona increases the transients
2. Corona reduces the transients
3. Both are not related

Ans: 2

9. The ________ the cross arms of pylon, the _________ is the efficiency.

1. Shorter, Greater
2. Longer, Greater

Ans: 2

10. Long transmission lines are modeled using:

1. Rigorous Method
2. Nominal T Method
3. Nominal Pi Method
4. End condensor method

Ans: 1