High Voltage Engineering MCQs Multiple Choice Questions Part 2

High Voltage Engineering MCQs

1. Marx multistage impulse generator model involves:

1. High ohmic resistances
2. Low ohmic resistances
3. Both of these
4. None of these

Ans: 3

2. Four statements are mentioned about the rod gaps, mention the correct statement:

1. Rod gaps are most accurate measurement devices
2. The use of rod gaps is not allowed as a.c measurement devices
3. Rod gaps contain 7 capped rods that are spaced at 1 mm
4. None of these is correct

Ans: 2

3. Cascaded transformers are most commonly employed in high voltage testing labs. The major __________ associated with the cascading configuration is that _________ stages are loaded more as compared to _________ stages.

1. advantage, lower, upper
2. disadvantage, lower, upper
3. advantage, upper, lower
4. disadvantage, upper, lower

Ans: 2

4. According to stressed oil volume theory, the breakdown strength __________ the stressed oil volume:

1. Is inversely proportional to
2. Is directly proportional to
3. Is independent of
4. None of these

Ans: 1

5. Recurrent surge generator provides:

1. Two current impulses
2. A large current impulse
3. A large magnitude impulse voltage
4. A smaller magnitude impulse voltage

Ans: 4

6. The dielectric strength of Mica is:

1. 1000 kV/in
2. 1500 kV/in
3. 5000 kV/in
4. 10000 kV/in

Ans: 3

7. The correct statement about SF₆ gas:

1. Under normal circumstances, It can be used above 14 kg/cm²
2. Under normal circumstances, it can’t be used above 14 kg/cm²

Ans: 2

8. Usually, the Insulation of power systems is classified in categories:

1. Internal
2. Mid
3. External
4. All of these
5. 1 & 2
6. 1 & 3

Ans: 6

9. External insulation comprises:

1. Air & Porcelain
2. Paper & Oil Insulation
3. Aluminium & Copper
4. Gold & Silver

Ans: 1

10. The generating voltmeter is:

1. A Non-linear electromechanical device
2. A variable capacitor electrostatic device
3. Asynchronous generator with plc module

Ans: 2