Understanding Electrical Symbols and Schematics…

Q: What is the standard symbol for a resistor?

A zigzag line — The zigzag line represents the resistance to current flow.

Q: Which symbol represents a single-pole, single-throw (SPST) switch?

A straight line with a break that can be connected or disconnected — The break in the line indicates the switch's open or closed state.

Q: What does the symbol of a capacitor look like in a schematic?

Two parallel lines — The parallel lines represent the two plates of a capacitor.

Q: What does the symbol for a ground connection look like?

A triangle pointing downwards and connected to three horizontal lines of decreasing length — This symbol denotes a connection to earth ground or a reference potential.

Q: The symbol for a diode typically includes:

A triangle pointing at a vertical line — The triangle indicates the anode and the vertical line the cathode of the diode.

Q: Which of the following symbols typically represents a DC voltage source?

Two parallel lines, one longer than the other — The longer line represents the positive terminal, the shorter line the negative.

Q: What does the symbol for a transformer typically look like?

Two coils of wire with lines connecting them — The coils represent the primary and secondary windings of the transformer.

Q: What does the symbol representing an inductor look like?

A coil of wire — The coil represents the inductive property of the component.

Q: What does SPDT switch stand for?

Single-Pole Double-Throw — SPDT switches have one input and can switch to two different outputs.

Q: What does the symbol of a fuse look like?

A line with a small loop or a broken line segment. — This represents the fusible element that melts and breaks the circuit in case of overcurrent.

Question 1 of 10

What is the standard symbol for a resistor?

The zigzag line represents the resistance to current flow.

Question 2 of 10

Which symbol represents a single-pole, single-throw (SPST) switch?

The break in the line indicates the switch's open or closed state.

Question 3 of 10

What does the symbol of a capacitor look like in a schematic?

The parallel lines represent the two plates of a capacitor.

Question 4 of 10

What does the symbol for a ground connection look like?

This symbol denotes a connection to earth ground or a reference potential.

Question 5 of 10

The symbol for a diode typically includes:

The triangle indicates the anode and the vertical line the cathode of the diode.

Question 6 of 10

Which of the following symbols typically represents a DC voltage source?

The longer line represents the positive terminal, the shorter line the negative.

Question 7 of 10

What does the symbol for a transformer typically look like?

The coils represent the primary and secondary windings of the transformer.

Question 8 of 10

What does the symbol representing an inductor look like?

The coil represents the inductive property of the component.

Question 9 of 10

What does SPDT switch stand for?

SPDT switches have one input and can switch to two different outputs.

Question 10 of 10

What does the symbol of a fuse look like?

This represents the fusible element that melts and breaks the circuit in case of overcurrent.

Understanding Electrical Symbols and Schematics Quiz