New York State Master Electrician Practice Exam

Which type of fittings are allowed to be encased in poured concrete?

1. General plastic fittings

2. Fittings not identified for this purpose

3. Fittings identified for this purpose

4. All types of metallic fittings

The correct answer is: Fittings identified for this purpose

Fittings that are specifically identified for encasement in poured concrete are designed to withstand specific environmental conditions and the stresses associated with being embedded in concrete. This means they are subjected to rigorous testing and standards that ensure their durability and functionality when surrounded by concrete. Using fittings that are identified for this specific purpose helps prevent issues such as corrosion, degradation, or structural failure that might occur if the wrong type of fitting is used. Fittings that are not designated for use in concrete could be susceptible to damage from moisture and chemical reactions that commonly occur in concrete. General plastic fittings may not have the necessary properties for long-term durability in such settings, while all types of metallic fittings may not be suitable without specific identification for such applications, as metals react differently to the substances within concrete. Therefore, it's crucial to use only those fittings expressly identified for encasement in poured concrete to ensure safety, performance, and compliance with applicable codes and standards.