Electrical Wiring Test Review

Electricity is ____.

• a negatively charged wire
• a buildup of charged particles
• energy that consists of charged particles, such as electrons
• a system for moving electrons long distances

A conductor is all of the following, except ____.

• gold, copper, or aluminum
• a material that allows electrons to flow easily
• an atom that resists the flow of electrons
• an atom easily relieved of valence electrons

Insulators are ____.

• atoms that resist the flow of electrons
• materials that allow electrons to flow easily
• made of gold, copper, or aluminum
• atoms easily relieved of valence electrons

Voltage is the ____.

• potential energy between two points along a conductor
• pressure at which electrons are pushed
• work that is performed by electrical energy
• resistance to moving electrons

Watts are the ____.

• flow of electrons
• pressure at which electrons are pushed
• work that is performed by electrical energy
• resistance to moving electrons

Ohms are the ____.

• flow of electrons
• work that is performed by electrical energy
• pressure at which electrons are pushed
• resistance to moving electrons

Of the following, which is the most efficient lighting source?

• Halogen lamps
• Light-emitting diodes
• Fluorescent bulbs
• Incandescent bulbs

The main difference between a fuse and a circuit breaker is ____.

• fuses are more expensive
• the fuse can only protect loads up to 20 amps
• the circuit breaker is only functional when excess heat builds up
• the circuit breaker is reusable

GFCIs are all of the following, except ____.

• designed to protect people
• legally required on every appliance in the kitchen
• useful where electricity is used close to water
• always monitoring the neutral and hot wire for differences in amperage

In AC electricity, ____.

• the electrons flow through both the hot and neutral
• power is drawn from a battery
• the power source is constantly switching the direction that electrons flow
• voltage alternates between hot and neutral sides of the wires