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
In an open floor plan office, the path of egress must be clearly defined. Which method satisfies NFPA 101's requirement when walls do not form corridors?
Answer: Providing floor-level exit path markings or defined aisles with compliant emergency lighting
Open-plan egress must be clearly defined through marked aisles or floor-level path indicators combined with compliant emergency illumination.
Which NEC article classifies and regulates emergency systems in buildings?
Answer: Article 700
NEC Article 700 specifically covers emergency systems, including the power sources and wiring methods required.
Exit signs must be visible from any direction of approach to an exit. A sign that can only be read when facing the exit door would most likely need a:
Answer: Double-faced (back-to-back) configuration
Double-faced exit signs display the word 'EXIT' on both faces so occupants approaching from either direction can see the sign.
The illumination level requirement at the end of the 90-minute emergency lighting test period must be at least what percentage of the initial illumination level per NFPA 101?
Answer: 50%
NFPA 101 requires that at the end of 90 minutes, illumination must not fall below 60% of the initial measured level — wait, the correct requirement is that it must remain at least 0.6 fc, meaning 60% of the 1.0 fc initial minimum.
Which of the following is a valid alternative to battery-backed emergency lighting under NFPA 101?
Answer: An on-site generator with automatic transfer in 10 seconds
An automatically started on-site generator that transfers within 10 seconds is an accepted alternative power source for emergency lighting.
High-rise buildings often require supplemental low-level exit path marking systems. What is the primary benefit of low-level (floor-level) egress markings?
Answer: They remain visible below smoke that accumulates near the ceiling during a fire
Low-level path markings stay visible beneath smoke layers that stratify near the ceiling, improving evacuation guidance in fire conditions.
A lighting designer specifying an emergency lighting layout must ensure that no point along the egress path is more than what maximum distance from an emergency luminaire per good practice guidelines?
Answer: 20 feet
Industry practice and many AHJ interpretations suggest emergency luminaires be spaced so no egress point is more than 20 feet from a unit to maintain adequate illuminance uniformity.