HOLT Electricians Practice Exam

All outlet boxes, junction boxes, and pull boxes must be accessible to ensure proper maintenance, inspection, and troubleshooting. This requirement is in line with electrical codes which prioritize safety and ease of access for electrical systems. Accessibility allows electricians to perform necessary repairs or modifications without extensive effort or risk of damage to surrounding structures.

For example, outlet boxes need to be accessible so that users can plug in or unplug devices easily without obstructing access. Junction boxes are crucial for connections between wires and circuits, which may require inspections or adjustments. Pull boxes are essential for cable management and protection, necessitating access for maintenance purposes.

Hence, the correct choice acknowledges that all types of these boxes must remain accessible, reinforcing best practices in electrical installations.