Which term covers the design and planning of sprinkler system coverage?

• A. Equivalency
• B. Changes Indication
• C. Layout and Calculation
• D. Liter

Answer: (C)

Designing sprinkler coverage focuses on deciding where sprinklers belong, how many are needed, how they’re spaced, and how the piping will be laid out to deliver the required water flow. It also involves performing hydraulic calculations to ensure each sprinkler receives adequate pressure and flow in the areas it’s supposed to protect. In NFPA 13R for low-rise residential systems, this overall planning and sizing work is described by the term Layout and Calculation. The other terms don’t describe this design activity: Equivalency is about using alternative means to meet the same performance, Changes Indication is about marking revisions, and Liter isn’t a term used for this purpose.