What term describes categories of sprinkler systems defined in standards?

• A. Classification of System Categories
• B. Types of Sprinklers
• C. System Types
• D. Categories of Standards

Answer: (C)

System types describe how sprinkler installations are grouped within the standards. The standards define broad categories of residential sprinkler configurations so the design requirements—piping layouts, water supply expectations, head spacing, and activation methods—can be applied consistently to a given scenario. This makes it clear what rules apply for a particular installation without getting into details about the sprinklers themselves or the standards as documents. The other options would focus on the devices, the standards as a whole, or use awkward phrasing, so they don’t fit the established naming in the codes.