NEC Commercial Electrical Practice Test

Where must a receptacle be installed in a wall space?

1. 1 foot or more in width

2. 2 feet or more in width

3. 3 feet or more in width

4. 4 feet or more in width

The correct answer is: 2 feet or more in width

A receptacle must be installed in a wall space that is 2 feet or more in width. This is consistent with the National Electrical Code (NEC) requirements, which specify that wall spaces wider than 2 feet must have at least one receptacle outlet to ensure convenience and accessibility for plugging in electrical devices. This standard encourages proper electrical distribution and minimizes the potential for overload situations by ensuring that there are enough receptacles available for use throughout a room or area. In this context, it is important to recognize that wall spaces less than 2 feet do not require a receptacle, as the intent is to ensure that outlets are available in larger areas where they are more likely to be needed. This regulation emphasizes safety and practicality in electrical installations, promoting effective use of space while adhering to NEC guidelines.