# High Voltage Engineering MCQs Part 1

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.

## 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