Mechanical Concepts Quiz

A positive charge is an electrical charge produced when there are more electrons than protons in an atom.

• True

• False

An insulator is a material that has a very high electrical resistance and resists the flow of electrons.

• True

• False

AC voltage is used in only portable equipment, such as automobiles, golf carts, flashlights, and cameras.

• True

• False

Power (P) is equal to voltage (E) times current (I).

• True

• False

Flux is most dense at the middle of a magnet.

• True

• False

DC can be generated using electromagnetic induction.

• True

• False

Never touch any part of a victim's body if the victim is in contact with a live circuit.

• True

• False

A brush is a ring made of insulated segments that keep the armature windings in the correct polarity to interact with the main fields in a DC generator.

• True

• False

Three-phase AC voltage is a combination of three alternating voltage waveforms, can vary in degrees apart.

• True

• False

• They're 120 degrees apart

• They're 180 degrees apart

This is a Series Circuit.

• True

• False

• It's a Series-Parallel circuit

• It's a Parallel Curcuit