Raw Water Source is defined as which of the following?

• A. Labeled
• B. Raw Water Source
• C. Approved
• D. Listed

Answer: (B)

In NFPA 13R, the crucial idea is understanding defined terms in the glossary. A raw water source is a water supply that has not been treated by a water treatment facility. The question is asking what the term itself is defined as, and the correct choice is the term that matches that defined concept exactly. The other options refer to certification or labeling concepts (like labeled, listed, approved) rather than describing a water source. So the best answer is the term that literally matches the defined term. In practice, identifying a raw water source matters because untreated water can contain impurities that may affect system performance, so designers note when a water supply is raw water and plan accordingly for treatment or acceptable quality.