Certified Apartment Maintenance Technician (CAMT) Practice Exam 2025 - Free CAMT Practice Questions and Study Guide

Standard residential electrical outlets in the United States typically operate at a voltage of 120 volts. This voltage level is designed to safely power common household appliances and lighting fixtures, making it the standard for most residential applications. The infrastructure for electrical systems in homes is built to support this voltage, allowing for efficient distribution of electrical energy to various outlets and devices.

In contrast, lower voltages like 12 volts and 24 volts are usually used for specific applications such as low-voltage lighting or automotive systems, where the lower voltage helps reduce the risk of electrical shock and allows for the use of lighter wiring. The 240 volts option, while applicable to certain high-power appliances like dryers and ovens, is not the standard for typical household outlets. Thus, the correct answer reflects the commonly encountered voltage in residential settings.