ICC Residential Electrical Inspectors Practice Exam

What type of receptacles must be listed for use in wet locations for 15 and 20 amp ratings?

1. Weather resistant

2. Corrosion resistant

3. Heavy duty

4. Industrial grade

The correct answer is: Weather resistant

The correct choice is that receptacles listed for use in wet locations for 15 and 20 amp ratings must be weather resistant. Weather-resistant receptacles are specifically designed to withstand exposure to moisture, which is critical in environments where water or humidity may come into contact with electrical components. These receptacles are constructed with materials and protective features that help prevent moisture infiltration and ensure reliable performance. Weather resistance is vital in locations such as outdoor areas, patios, or near water sources, where standard receptacles may fail due to exposure to the elements. This characteristic helps ensure safety by reducing the risk of electrical shock or equipment failure. Other types of receptacles, while they may have their own specific applications, do not necessarily meet the stringent requirements for wet locations. Corrosion-resistant options are typically focused on preventing rust and deterioration due to chemical exposure rather than moisture ingress. Heavy-duty and industrial-grade receptacles, although robust and suitable for demanding environments, are not specifically designed or rated for wet location use unless they also fall under the weather-resistant classification. Therefore, weather-resistant receptacles are the appropriate choice for 15 and 20 amp applications in wet environments.