Recreational Vehicle (RV) Technician Practice Test

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Prepare for the Recreational Vehicle (RV) Technician Test. Utilize interactive quizzes and in-depth questions with explanations. Get ready to become certified!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Before performing an ohms test with a multimeter, what precaution should be taken?

Ensure the circuit is energized
Ensure the circuit is de-energized
Connect the meter in parallel
Remove the batteries from the circuit

The correct answer is: Ensure the circuit is de-energized

Before performing an ohms test with a multimeter, it is crucial to ensure that the circuit is de-energized. This precaution protects both the technician and the equipment. An energized circuit can produce unexpected voltage and current levels that may lead to inaccurate readings, potential damage to the multimeter, or even electrical shock. When measuring resistance, the multimeter sends a small test current through the circuit. If the circuit is live, it can interfere with these readings by adding unwanted voltage, leading to erroneous results that could mislead troubleshooting efforts. This makes it essential to turn off power to the circuit before conducting an ohms test. While other options present actions that might seem relevant, they do not align with the safety standards required for this type of measurement. Ensuring the circuit is de-energized is recognized best practice in electrical testing to maintain safety and obtain accurate measurements.