Which statement is true about weather-resistant receptacles outdoors?

• A. They must be tamper-resistant outdoors
• B. They must be 15A
• C. They must be indoors
• D. They must be weather-resistant

Answer: (D)

Outdoors, outlets must be protected from the elements, so they are designed to be weather-resistant. Weather-resistant means the receptacle and its cover are built to resist moisture, rain, and humidity so they won’t degrade or fail when exposed to weather. Tamper-resistant is a useful safety feature in many applications, but it isn’t the defining requirement for outdoor use. Requiring a specific amperage like 15A isn’t the universal mandate for outdoor receptacles—they can be 15A or higher depending on the circuit design. Saying it must be indoors is incorrect because the point of weather resistance is to withstand outdoor conditions. So the best answer is that outdoor receptacles must be weather-resistant.