Electrical Principles and Wiring Materials

If electricity flows easily through it, the metal is said to be a good _____.

• conductor
• insulator
• connector
• chain

_____ are a measure of electrical pressure.

• Watts
• Volts
• Amperes
• Ohms

Lines of magnetic force are called magnetic _____.

• flux
• poles
• attractants
• repellents

In a motor, the current is reversed by a part called a(n) _____.

• turbine
• alternator
• armature
• commutator

A short circuit causes _____.

• brown-outs
• increased battery life
• blown fuses
• lapses in energy flow

A GFCI _____.

• creates a short circuit
• closes an open circuit
• grounds a current using a ground rod
• reduces the likelyhood of human shock injury

A(n) _____ is a waterproof device used to attach exterior wires to interior wires of a building.

• entrance head
• meter plate
• breaker box
• service panel

The _____ is an assembly of electrical wires, connectors, and fastener used to transmit electricity from the transformer to the service entrance panel.

• switch core
• breaker hub
• service drop
• installation core

A 100-watt bulb that burns for 1 hour will consume _____ watt-hour(s) of electricity.

• 1.0
• 100.0
• 1000.0
• 10.0

_____ consists of a flexible metal sheath with individual wires inside.

• conduit
• armored cable
• electrical metallic tubing
• waterproof sheathed cable