High Voltage Engineering MCQs Part 1

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Today Electrical Engineering XYZ shares High Voltage Engineering MCQs Part 1 which are important for every Power Engineer, Technician. Go to main HV page for more MCQs on HV Engineering. Let’ start learning:

Marx multistage impulse generator model involves

Marx multistage impulse generator model involves:

  1. High ohmic resistances
  2. Low ohmic resistances
  3. Both of these
  4. None of these
    • Correct answer: 3. Both of these

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

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
    • Correct answer: 2. The use of rod gaps is not allowed as a.c measurement devices

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

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
    • Correct answer: 2. disadvantage, lower, upper

According to stressed oil volume theory, the breakdown strength __________ the stressed oil volume

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
    • Correct answer: 1. Is inversely proportional to

Recurrent surge generator provides

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
    • Correct answer: 4.  A smaller magnitude impulse voltage

The dielectric strength of Mica is

The dielectric strength of Mica is:

  1. 1000 kV/in
  2. 1500 kV/in
  3. 5000 kV/in
  4. 10000 kV/in
    • Correct answer: 3. 5000 kV/in

The correct statement about SF6 gas

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
    • Correct answer: 2. Under normal circumstances, it can’t be used above 14 kg/cm2

Usually, the Insulation of power systems is classified in categories

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
    • Correct answer: 6. 1 & 3 (Internal & External)

External insulation comprises

External insulation comprises:

  1. Air & Porcelain
  2. Paper & Oil Insulation
  3. Aluminium & Copper
  4. Gold & Silver
    • Correct answer: 1. Air & Porcelain

The generating voltmeter is

The generating voltmeter is:

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

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