Recreational Vehicle (RV) Technician Practice Test

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Prepare for the RV Technician Test with our quiz. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Achieve success in your exam!

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!

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What gauge number indicates the largest diameter copper wire?

The correct answer is: 00

In wire gauge systems, particularly the American Wire Gauge (AWG) system, the gauge number is inversely proportional to the diameter of the wire—meaning that as the gauge number decreases, the diameter of the wire increases. Therefore, a lower gauge number indicates a larger diameter. In this context, 00 gauge wire is actually larger in diameter than 0 gauge wire. Similarly, 000 gauge wire would have an even larger diameter than 00 gauge wire. In contrast, 1 gauge wire has a smaller diameter than all of the aforementioned wire sizes. Thus, 00 gauge wire, being designated as "B" here, is the proper answer, as it indicates a larger diameter than both 0 and 1 gauge wires. Understanding this numerical relationship is essential for selecting the appropriate wire size for different electrical applications in RVs, ensuring proper conductivity and safety.