Which term denotes pipe materials not made from metals?

Which term denotes pipe materials not made from metals?

• A. Nonmetallic Pipe
• B. Automatic Sprinkler Installations
• C. Listing Limitations
• D. Gauge Pressure

Answer: (A)

Nonmetallic pipe refers to pipe materials not made from metals. In NFPA 13R, this term is used to distinguish plastic or other nonmetal materials (such as CPVC, PVC, or PEX) from metallic piping like steel or copper. The question asks for the term that denotes pipe materials not made from metals, and this label directly describes those nonmetal materials, making it the correct choice. The other options point to different concepts unrelated to pipe material: automatic sprinkler installations describes how the system is installed, listing limitations pertain to approved listings and constraints, and gauge pressure is a pressure measurement.

Nonmetallic pipe refers to pipe materials not made from metals. In NFPA 13R, this term is used to distinguish plastic or other nonmetal materials (such as CPVC, PVC, or PEX) from metallic piping like steel or copper. The question asks for the term that denotes pipe materials not made from metals, and this label directly describes those nonmetal materials, making it the correct choice. The other options point to different concepts unrelated to pipe material: automatic sprinkler installations describes how the system is installed, listing limitations pertain to approved listings and constraints, and gauge pressure is a pressure measurement.