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F80 Code Requirements Flashcards

7 cards from real F80 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 F80 Code Requirements flashcards as text

  1. What is the maximum allowable voltage drop on a fire alarm initiating device circuit (IDC) under NFPA 72?

    Answer: 2 volts

    NFPA 72 limits voltage drop on initiating device circuits to no more than 2 volts to ensure proper device operation.

  2. According to NFPA 72, in which occupancy type must all corridors be equipped with smoke detectors as a minimum requirement?

    Answer: Health care occupancies

    Health care occupancies require smoke detectors in all corridors due to the higher life-safety risk for occupants who may not be able to self-evacuate.

  3. Under NFPA 72, what is the required minimum wire gauge for a Class A fire alarm circuit?

    Answer: 18 AWG

    NFPA 72 requires a minimum of 18 AWG conductors for fire alarm circuits; the manufacturer's listing may require larger gauges.

  4. A Class B initiating device circuit (IDC) differs from a Class A IDC primarily because Class B circuits:

    Answer: Require end-of-line resistors and do not provide fault detection beyond the first open

    Class B IDCs use end-of-line resistors for supervision but lose contact with devices beyond an open fault, unlike Class A circuits that loop back.

  5. According to the F80 code framework, which document must be submitted to the Authority Having Jurisdiction (AHJ) before fire alarm system installation begins?

    Answer: Shop drawings and specifications

    Shop drawings and specifications must be submitted to and approved by the AHJ prior to installation of a fire alarm system.

  6. NFPA 72 requires that the primary power supply for a fire alarm system be:

    Answer: A dedicated branch circuit rated at 120V from the main electrical panel

    The primary power supply must be a dedicated branch circuit, typically 120V, connected ahead of any local disconnecting means and clearly labeled.

  7. Under F80 code requirements, what must be done when a fire alarm system is out of service for more than 8 hours in a 24-hour period?

    Answer: A fire watch must be established and the AHJ notified

    When a fire alarm system is out of service for more than 8 hours, a fire watch must be established and the AHJ must be notified per NFPA 72 and IFC requirements.