Heavy Duty Equipment Technician Red Seal Exam Prep · Question
On a wiring diagram, a square symbol with a wavy line inside typically represents which component?
A square symbol with a wavy line inside (or sometimes a series of humps) is the standard symbol for an inductor or coil in an electrical schematic. Resistors ar
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Question: On a wiring diagram, a square symbol with a wavy line inside typically represents which component?
Answer options:
- Fuse
- Resistor
- Capacitor ✅ Inductor (coil)
Correct answer: Inductor (coil)
Explanation: A square symbol with a wavy line inside (or sometimes a series of humps) is the standard symbol for an inductor or coil in an electrical schematic. Resistors are typically zigzag lines, capacitors are parallel plates, and fuses are often a rectangle with a line through it.
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