Sprinklers listed for specific construction features are referred to as which term?

• A. Nominal K-5.6
• B. Satisfactory Performance
• C. Listing Limitations
• D. Special sprinklers

Answer: (D)

Sprinklers listed for specific construction features are special sprinklers. This designation means the sprinkler has been tested and listed by a recognized testing lab to perform correctly in configurations or with materials that standard sprinklers aren’t suited for—things like unique ceiling shapes, decorative features, or other architectural details that could affect how the water is distributed. Using a special sprinkler ensures the discharge pattern and coverage meet protection requirements despite those nonstandard features, so the system still provides the intended protection. The other terms don’t describe this concept: one is a discharge coefficient for a regular sprinkler, another is a general listing term, and the last isn’t a standard designation for sprinklers tailored to construction features.