Quiz 1 EPO616 - High Voltage Engineering

What is at the center of an Atom called?

• Electron

• Nucleus

• Protons

• Neutrons

What is electricity?

• Flow of Protons

• Flow of Atoms

• Flow of Electrons

• Flow of Neutrons

Unlike Charges

• Attract

• Repel

Current is the movement of

• Electrons

• Protons

• Nucleus

• Neutrons

The device that lowers our AC voltage so we can use it in our homes

• Transformer
• Rectifier
• Splicer
• Voltmeter

Average electrical field is the magnitude of electrical field

• at mid point between conductors

• ratio of potential difference to the distance between the conductors

• at surface of the lower potential electrode

• ratio of potential difference to half the distance between the conductors

An experiment method for computing the field distribution is

• solution of Laplace equation

• electrolytic tank method

• digital simulation

• field intensity method

The best insulating among all insulating materials available is ......

• air

• vacuum

• solid

• mineral oil

The most commonly used liquid as insulating medium is

• vegetable oil

• mineral oil

• silicone oil

• askarel

Impurities in insulating materials reduce ......

• breakdown strength

• viscosity

• electric field