Red Seal Recreation Vehicle Service Technician Practice Exam 2025 - Free RV Service Technician Practice Questions and Study Guide

The typical voltage of a domestic electrical outlet in an RV is 120 volts AC. This voltage standard is primarily used in North America for standard household outlets, offering a reliable power source for everyday appliances and devices typically found in recreational vehicles.

120 volts AC is suitable for operating various electrical systems and equipment in an RV, such as lighting, air conditioners, heaters, and kitchen appliances, which are designed to function within this voltage range. It is essential for RV owners and technicians to be aware of this voltage when troubleshooting electrical systems or ensuring that appliances are compatible with the RV's electrical supply.

The other voltage options may represent different contexts. For instance, 240 volts AC is often used in home systems for high-power appliances, but not in an RV setting. Similarly, 12 volts DC is commonly used for the RV's battery systems, powering lights and small devices, but it is not the voltage supplied by standard outlets. Lastly, 48 volts DC is typically not used in common residential or RV applications, as it's more associated with specific industrial or specialized systems. Understanding these distinctions is crucial for ensuring safety and proper functionality within the RV's electrical framework.