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

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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

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