Heavy Duty Equipment Technician Red Seal Exam Prep · Question
When performing a voltage drop test on a circuit, what does a significant voltage drop across a wire or connection indicate?
Voltage drop occurs when voltage is lost across a conductor due to resistance. A significant voltage drop indicates excessive resistance in that particular wire
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Question: When performing a voltage drop test on a circuit, what does a significant voltage drop across a wire or connection indicate?
Answer options: ✅ Excessive resistance in that part of the circuit
- An open circuit (no current flow)
- A short circuit (excessive current flow)
- Correct and normal operation of the circuit
Correct answer: Excessive resistance in that part of the circuit
Explanation: Voltage drop occurs when voltage is lost across a conductor due to resistance. A significant voltage drop indicates excessive resistance in that particular wire or connection, impeding adequate current flow to the component.
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