Electrician's Licensing Practice Exam

What is the required height for a receptacle off the floor?

1. 12 in.

2. 16 in.

3. 18 in.

4. 24 in.

The correct answer is: 16 in.

The standard requirement for the height of electrical receptacles from the floor is commonly set at 12 to 18 inches, with 16 inches often being used as a practical midpoint by many electricians. This height ensures that the receptacles are easily accessible for plug-in usage while also being high enough to minimize the risk of water damage during cleaning or accidental spills. It's also important for accommodating various appliance cords, providing a balance between convenience and safety. In numerous jurisdictions, following the National Electrical Code (NEC), the accepted height for general-purpose receptacles is indeed 12 to 18 inches, with many codes referencing 16 inches as a common threshold. This allows for consistency in installations and meets the needs of everyday use in residential and commercial spaces. While other height options may be considered in specific situations, they do not align as closely with the standard practice referenced in most codes and regulations, which focus on the 12 to 18-inch range for receptacles.