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Electrical Symbols and Components
Electrical Engineering
This content lists and describes various electrical symbols and components commonly found in building plans, including switches, receptacles, light fixtures, and other electrical devices.
electrical
symbols
components
29 Questions
Easy
Ages 10+
Jul 14, 2026
About this Study Set
This study set covers Electrical Engineering through
29 practice questions.
This content lists and describes various electrical symbols and components commonly found in building plans, including switches, receptacles, light fixtures, and other electrical devices. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 29 questions from the
Electrical Symbols and Components study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which symbol represents a single pole switch?
-
A
Three-way switch
-
B
Single pole switch
-
C
Duplex receptacle
-
D
Electrical switchbox
2
What does 'WP' stand for in the context of receptacles?
-
A
Wide Plate
-
B
Waterproof
-
C
Wired Power
-
D
Wall Plug
3
Which type of receptacle is designed to prevent electric shock in damp locations?
-
A
Isolated ground receptacle
-
B
Switched receptacle
-
C
GFCI duplex receptacle
-
D
240-volt receptacle
4
What does the symbol 'HP' typically refer to for an electric motor?
-
A
High Power
-
B
Horsepower
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C
Heating Point
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D
Hazardous Protection
5
Which fixture is described as 'Ceiling mounted'?
-
A
Wall-mounted light fixture
-
B
Ceiling fan
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C
Recessed light fixture
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D
Ceiling mounted light fixture
6
What is the symbol for a telephone jack?
-
A
Ground
-
B
Telephone jack
-
C
Doorbell transformer
-
D
Circuit breaker
7
Which symbol represents a device that detects smoke?
-
A
Power vent fan
-
B
Smoke detector
-
C
Doorbell pushbutton
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D
Circuit breaker
8
What is a 'Duplex receptacle' used for?
-
A
To control a single light
-
B
To provide two outlets
-
C
To detect smoke
-
D
To connect a telephone
9
Which type of switch allows control of a light from two different locations?
-
A
Single pole switch
-
B
Three-way switch
-
C
Pullchain switch
-
D
Switched receptacle
10
What does a 'Circuit breaker' primarily do?
-
A
Detects smoke
-
B
Transforms doorbell voltage
-
C
Protects a circuit from overload
-
D
Provides two electrical outlets
11
Which symbol represents a light fixture controlled by a pullchain?
-
A
Ceiling fan
-
B
Weatherproof light fixture
-
C
Fluorescent light fixture
-
D
PC - Pullchain
12
What is the symbol for a doorbell transformer?
-
A
Doorbell pushbutton
-
B
Doorbell transformer
-
C
Telephone jack
-
D
Ground
13
Which receptacle is designed to have a different ground potential?
-
A
GFCI duplex receptacle
-
B
Isolated ground receptacle
-
C
Switched receptacle
-
D
Waterproof receptacle
14
What is a 'Fourplex fourgand receptacle' likely used for?
-
A
Connecting a single appliance
-
B
Connecting four appliances
-
C
Controlling lights
-
D
Detecting smoke
15
Which symbol represents a fan mounted on the ceiling?
-
A
Power vent fan
-
B
Combination light and fan
-
C
Ceiling fan
-
D
Electric motor number - HP
16
What is the symbol for a wall-mounted light fixture?
-
A
Ceiling mounted light fixture
-
B
Weatherproof light fixture
-
C
Wall-mounted light fixture
-
D
Fluorescent light fixture
17
What does 'GFCI' stand for in a receptacle?
-
A
Ground Fault Circuit Interrupter
-
B
General Fault Current Indicator
-
C
Ground Fault Current Inhibitor
-
D
General Circuit Fault Detector
18
What is the purpose of a 'Switched receptacle'?
-
A
To provide continuous power
-
B
To control the power to the receptacle with a switch
-
C
To connect a telephone
-
D
To protect from water damage
19
Which symbol represents a receptacle designed to withstand outdoor conditions?
-
A
Duplex receptacle
-
B
GFCI duplex receptacle
-
C
WP - Waterproof
-
D
Isolated ground receptacle
20
What is a 'Singleplex receptacle' typically used for?
-
A
Two devices
-
B
One device
-
C
Three devices
-
D
Four devices
21
Which symbol represents a light fixture that is recessed into the ceiling?
-
A
Ceiling mounted light fixture
-
B
Wall-mounted light fixture
-
C
Recessed light fixture
-
D
Fluorescent light fixture
22
What is the symbol for an 'Electric motor number - HP'?
-
A
Smoke detector
-
B
Doorbell transformer
-
C
Electric motor number - HP
-
D
Circuit breaker
23
What is the symbol for a 'Doorbell pushbutton'?
-
A
Doorbell transformer
-
B
Ground
-
C
Doorbell pushbutton
-
D
Telephone jack
24
What does a 'Power vent fan' typically do?
-
A
Provide light
-
B
Ventilate air
-
C
Detect smoke
-
D
Supply electrical power
25
Which symbol represents a receptacle for 240-volt power?
-
A
Duplex receptacle
-
B
Singleplex receptacle
-
C
240-volt receptacle
-
D
Switched receptacle
26
What is a 'Combination light and fan' used for?
-
A
Separate lighting and ventilation
-
B
Integrated lighting and ventilation
-
C
Only lighting
-
D
Only ventilation
27
What is the symbol for a 'Fluorescent light fixture'?
-
A
Ceiling fan
-
B
Weatherproof light fixture
-
C
Fluorescent light fixture
-
D
Combination light and fan
28
What does the symbol for 'Ground' indicate?
-
A
Positive connection
-
B
Negative connection
-
C
Safety connection
-
D
Neutral connection
29
What is an 'Electrical switchbox' used to house?
-
A
Light fixtures
-
B
Receptacles
-
C
Switches and wiring
-
D
Transformers
