Electrician Vocabulary

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Date:

Instructions: Get wired into the language of electrical work with this enlightening terminology quiz.

1.
What is a 'circuit breaker'?
A
A person who damages electrical systems
B
A tool for cutting wires
C
A type of electrical outlet
D
An automatic switch that stops electrical flow when a circuit is overloaded
2.
What does 'amperage' measure?
A
The voltage of a battery
B
The resistance in a wire
C
The amount of electric current flowing through a circuit
D
The speed of electricity
3.
What is a 'conduit' in electrical work?
A
A type of wire connector
B
An electrical panel
C
A tube or channel used to protect and route electrical wiring
D
A grounding rod
4.
What does 'grounding' do in an electrical system?
A
Increases the voltage output
B
Keeps wires off the ground
C
Attaches electrical panels to walls
D
Provides a safe path for stray electrical current to flow into the earth
5.
What is a 'junction box'?
A
An enclosed box where electrical wires are safely connected together
B
A box of fuses
C
A portable power supply
D
A transformer housing
6.
What does 'ohm' measure?
A
Electrical voltage
B
Electrical power
C
Electrical resistance
D
Electrical current
7.
What is a 'GFCI outlet'?
A
A high-voltage industrial outlet
B
A generator-fed circuit inlet
C
A ground fault circuit interrupter that shuts off power when it detects current leakage
D
A standard three-prong outlet
8.
What does 'load' refer to in an electrical circuit?
A
Any device or component that consumes electrical power
B
The weight of the wiring
C
The length of wire used
D
The number of outlets on a circuit
9.
What is 'romex' commonly used for?
A
Non-metallic sheathed cable used for residential indoor wiring
B
Outdoor lighting
C
Industrial power lines
D
Underground utility wiring
10.
What does a 'multimeter' do?
A
Generates alternating current
B
Counts the number of circuits in a building
C
Measures voltage, current, and resistance in electrical circuits
D
Controls multiple light switches
11.
What is a 'three-way switch'?
A
A type of circuit breaker
B
A switch that controls three different lights
C
A pair of switches that allow a light to be controlled from two different locations
D
A switch with three settings: on, off, and dim
12.
What does 'watt' measure?
A
Electrical power, or the rate at which electrical energy is consumed
B
Circuit length
C
Wire thickness
D
Electrical resistance
13.
What is 'knob and tube' wiring?
A
A type of industrial connector
B
An early electrical wiring system using ceramic knobs and tubes as insulators
C
A method of grounding
D
A modern wiring method
14.
What is a 'short circuit'?
A
A small residential circuit
B
A circuit with very short wires
C
An unintended path of low resistance that allows excessive current flow
D
A circuit that only works briefly
15.
What does 'gauge' refer to when discussing electrical wire?
A
The thickness or diameter of the wire
B
The color of the insulation
C
The length of the wire spool
D
The material the wire is made from

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