All 15- and 20-ampere receptacles installed within 6ft (1.8 m) of a _____ sink must be GFCI protected.

The correct answer involves understanding the National Electrical Code (NEC) requirements regarding GFCI (Ground Fault Circuit Interrupter) protection for receptacles located near sinks. Receptacles that are installed within 6 feet of certain types of sinks must be protected to minimize the risk of electrical shock, particularly in areas where water is present.

The term "wet bar" refers to a small bar area that includes a sink and is commonly found in residential settings. Because wet bars are often used for food and drink preparation, it is important to ensure that any electrical outlets in the vicinity are safe for use. The NEC specifies that all 15- and 20-ampere receptacles located within 6 feet of a wet bar sink must have GFCI protection. This is to safeguard individuals using the area from potential electric shock, which might occur due to water splashes or spills.

In contrast, while receptacles near kitchen sinks are also required to be GFCI protected, the specific mention of "wet bar" aligns directly with the code requirement for that type of installation. Other terms like "utility sink" or "wash sink" may imply different contexts or uses that don't specifically trigger the same NEC provisions as for a wet bar sink.