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Emergency & Exit Lighting Standards Flashcards

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

Read the first 7 Emergency & Exit Lighting Standards flashcards as text
  1. What is the minimum battery duration required for emergency lighting systems under NFPA 101?

    Answer: 90 minutes

    NFPA 101 requires emergency lighting systems to provide illumination for a minimum of 90 minutes after loss of normal power.

  2. Exit signs in a fully sprinklered building may be permitted to use a smaller letter height. What is that reduced minimum letter height?

    Answer: 3 inches

    NFPA 101 permits sprinklered buildings to use exit signs with a minimum letter height of 4 inches, reduced from the standard 6 inches.

  3. Under NFPA 101, which of the following occupancy types is NOT required to have exit signs?

    Answer: One- and two-family dwellings

    NFPA 101 exempts one- and two-family dwellings from the exit sign requirements that apply to other occupancies.

  4. What does the 'end-of-life' battery voltage cutoff point on a self-contained emergency unit represent?

    Answer: The lowest voltage at which the unit will operate before shutting off to prevent damage

    The end-of-life cutoff is the lowest discharge voltage the unit allows before shutting off to protect battery cell integrity.

  5. NFPA 101 requires that emergency lighting be arranged so that failure of any single lighting unit cannot leave any area in total darkness. This principle is known as:

    Answer: Dual-source coverage

    The dual-source coverage principle ensures no single fixture failure plunges any egress area into total darkness.

  6. A combination exit sign/emergency light unit that fails its monthly test should be:

    Answer: Removed, repaired or replaced, and retested before returning to service

    Any unit that fails a test must be immediately taken out of service, repaired or replaced, and retested before being returned to service.

  7. Which document type is the primary UL standard governing the performance and testing of emergency lighting equipment?

    Answer: UL 924

    UL 924 is the standard for Emergency Lighting and Power Equipment, covering self-contained and centrally powered units.