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NFPA 13 Sprinkler Systems Flashcards

6 cards from real NFPA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 NFPA 13 Sprinkler Systems flashcards as text

  1. What color code indicates a sprinkler with a temperature rating of 135–170°F (57–77°C) under NFPA 13?

    Answer: Uncolored/Black

    NFPA 13 specifies that sprinklers rated at 135–170°F are uncolored (natural brass) or marked with a black color code.

  2. Under NFPA 13, a deluge system differs from a preaction system in that a deluge system has:

    Answer: Open sprinkler heads throughout

    A deluge system uses open (non-fusible) sprinkler heads so that water discharges from all heads simultaneously when the deluge valve opens.

  3. According to NFPA 13, what is the required minimum pipe size for a single sprinkler branch line?

    Answer: ¾ inch

    NFPA 13 requires a minimum pipe size of ¾ inch for branch lines serving individual sprinklers.

  4. Which NFPA 13 system type uses a pneumatic or electric detection system to open the valve before a sprinkler fuses?

    Answer: Preaction

    A preaction system requires operation of a supplemental detection system to open the preaction valve before water can flow to sprinklers.

  5. Under NFPA 13, what hazard classification applies to auto showrooms, bakeries, and laundries?

    Answer: Ordinary hazard Group 1

    NFPA 13 classifies auto showrooms, bakeries, and laundries as Ordinary Hazard Group 1 occupancies.

  6. According to NFPA 13, what is the maximum area of sprinkler operation (design area) for a light hazard hydraulically designed system?

    Answer: 1,500 sq ft

    NFPA 13 sets the design area for a hydraulically designed light hazard sprinkler system at 1,500 square feet.