Practice Test Geeks(CFI) Certified Fire Inspector Practice Test
← All CFI Flashcard Decks

Sprinkler System Requirements Flashcards

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

Read the first 7 Sprinkler System Requirements flashcards as text

  1. What is the minimum pipe size permitted for a branch line in an NFPA 13 sprinkler system?

    Answer: 1 inch

    NFPA 13 requires branch lines to be a minimum of 1 inch in diameter to ensure adequate water flow.

  2. A deluge system differs from a pre-action system primarily because:

    Answer: All sprinkler heads are open and water discharges from all simultaneously upon system activation

    In a deluge system, all sprinkler heads are open (unplugged) so that when the deluge valve opens, water flows from every head simultaneously.

  3. During a sprinkler system inspection, corrosion is found on multiple heads. Per NFPA 25, the inspector should:

    Answer: Replace all corroded heads immediately

    NFPA 25 requires corroded sprinkler heads to be replaced immediately because corrosion can alter the head's operating temperature and spray pattern.

  4. What is the required minimum operating pressure at the most hydraulically remote sprinkler head per NFPA 13 for standard spray heads?

    Answer: 10 psi

    NFPA 13 requires a minimum residual pressure of 7 psi at the most remote sprinkler head to ensure adequate water distribution.

  5. Which document establishes the design criteria and hydraulic calculations for a sprinkler system and must be kept on the premises?

    Answer: The as-built drawings and hydraulic data nameplate

    NFPA 13 requires as-built drawings and a hydraulic data nameplate to remain on the premises so the system's design basis can be verified.

  6. Under NFPA 13, sprinklers installed in a concealed space with no combustible materials and no access panels are:

    Answer: Not required if the space is noncombustible construction

    NFPA 13 exempts concealed spaces from sprinkler requirements when they are of noncombustible construction and contain no combustible materials.

  7. What is the function of a waterflow alarm device on a sprinkler system?

    Answer: To signal that water is flowing in the system, indicating a possible sprinkler activation

    A waterflow alarm device detects movement of water in the piping and transmits a signal to alert occupants and the fire alarm system of a possible sprinkler operation.