Electrical Symbols Quiz

Which symbol is commonly used for a fuse?

• A zigzag line

• A rectangle with a straight line

• A straight line with a dot

• A circle with a wave inside

What is the symbol for a microphone?

• A circle with a wave inside

• A rectangle with a diagonal line

• A circle with a plus and minus sign

• A straight line with a dot

Which diode is represented by a symbol with arrows pointing outwards?

• Photo-diode

• Tunnel diode

• Light emitting diode

• Varactor

What is the focus of BS 3939: 1992?

• Graphical symbols for electrical power, telecommunications and electronics diagrams

• Data processing flow chart symbols, rules and conventions

• Engineering diagram drawing practice

• SI Units and recommendations for the use of their multiples

Link the types of Diagrams to the descriptions!

• Circuit

• Are primarily used to show the physical layout of the electrical system. They depict how the different components of a circuit are connected to each other, including the wires, connectors, and switches.

• Wiring

• Provides a high-level overview of a system, highlighting the main components and their interactions.

• Layout

• These diagrams are used to design and troubleshoot electrical circuits by showing all electrical connections and components.

• Block

• A detailed and scaled drawing that illustrates the placement and connections of electrical components within a building or space. This includes fixtures, outlets, switches, and wiring.

What symbol is used to represent a resistor in a circuit diagram?

• A wavy line

• A rectangle with a line at each end

• A circle with a wave inside

• A straight line with a dot

Which component is symbolized by a triangle pointing to a line?

• Diode

• Inductor

• Transistor

• Capacitor

What does the symbol of a capacitor look like?

• Two parallel lines

• A zigzag line

• A circle with a plus and minus sign

• A rectangle with a diagonal line