Electrician's Licensing Practice Exam

What is the minimum height requirement for a receptacle installed in a dwelling unit?

1. 12 inches above the floor

2. 15 inches above the floor

3. 18 inches above the floor

4. 24 inches above the floor

The correct answer is: 15 inches above the floor

The minimum height requirement for a receptacle installed in a dwelling unit is established to ensure safety and accessibility. The correct answer identifies that receptacles must be located no less than 15 inches above the finished floor. This height is intended to protect the receptacles from potential damage from cleaning equipment or furniture and provide easy access for users. Setting the minimum height at 15 inches balances safety and practicality, allowing homeowners to use appliances and devices without the risk of tripping or inadvertently pulling cords. The codes and standards governing electrical installations, such as the National Electrical Code (NEC), are designed to promote safe and effective electrical practices while considering the typical arrangement of furniture and living spaces. Therefore, a minimum height of 15 inches is crucial for adhering to these standards.