Heavy Duty Equipment Technician Red Seal Exam Prep · Question
When using a multimeter to check for an open circuit, what reading would you expect to see?
An open circuit means there is a break in the circuit, preventing current flow. A multimeter set to resistance (ohms) will show infinite resistance (often displ
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Question: When using a multimeter to check for an open circuit, what reading would you expect to see?
Answer options: ✅ Infinite resistance (OL or 'open loop')
- Zero resistance
- Battery voltage
- High amperage
Correct answer: Infinite resistance (OL or 'open loop')
Explanation: An open circuit means there is a break in the circuit, preventing current flow. A multimeter set to resistance (ohms) will show infinite resistance (often displayed as 'OL' or 'open loop') because the circuit is not complete.
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