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!

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Which device can help detect electrical continuity?

Oscilloscope
Refrigerant gauge
Ohmmeter
Power supply

The correct answer is: Ohmmeter

An ohmmeter is specifically designed to measure electrical resistance and can effectively detect electrical continuity in a circuit. When connected across a circuit or component, it sends a small current through and measures the resistance. If there is continuity, meaning that the circuit is complete without breaks, the resistance will show a low value. If there is no continuity due to an open circuit, the resistance will read as infinite or very high. This function makes the ohmmeter essential for troubleshooting electrical systems in RVs, allowing technicians to quickly diagnose whether or not current can flow through various components. The other devices listed do not serve the same purpose; for example, oscilloscopes are used for visualizing electrical signals, refrigerant gauges are used for measuring refrigerant levels and pressures in HVAC systems, and power supplies are used to provide electrical power rather than measure continuity.