CLC Emergency & Exit Lighting Standards 2 — Questions and Answers
Question 1: Under NFPA 101, what is the minimum illumination level required at the floor along the path of egress during emergency lighting operation?
- 0.5 foot-candles
- 1.0 foot-candle (Correct answer)
- 2.0 foot-candles
- 5.0 foot-candles
Correct answer: 1.0 foot-candle
NFPA 101 requires a minimum of 1.0 foot-candle (10.8 lux) at the floor level along the egress path.
Question 2: What is the maximum uniformity ratio (maximum to minimum illuminance) permitted along an egress path under NFPA 101?
- 10:1
- 20:1
- 40:1 (Correct answer)
- 60:1
Correct answer: 40:1
NFPA 101 allows a maximum uniformity ratio of 40:1 (maximum to minimum) along egress paths.
Question 3: Which IES standard specifically addresses emergency and exit lighting design recommendations?
- IES RP-1
- IES RP-7
- IES DG-4
- IES RP-29 (Correct answer)
Correct answer: IES RP-29
IES RP-29 provides recommended practices specifically for lighting for egress and emergency situations.
Question 4: A remote self-contained emergency luminaire uses an internal battery. What does 'self-contained' specifically refer to?
- The unit has its own transfer switch
- The battery, charger, and lamp are all within the same housing (Correct answer)
- The unit operates independently of the fire alarm system
- The unit requires no conduit connections
Correct answer: The battery, charger, and lamp are all within the same housing
A self-contained unit integrates the battery, charger, and lamp all within a single housing.
Question 5: In a central battery emergency lighting system, what device typically monitors the health of each individual luminaire?
- A circuit breaker
- An addressable monitoring module (Correct answer)
- A ground fault interrupter
- A photosensor
Correct answer: An addressable monitoring module
Addressable monitoring modules in central battery systems track the status of each connected luminaire for fault detection.
Question 6: Exit signs using LED light sources compared to incandescent exit signs primarily offer what advantage?
- Higher initial lumens output
- Significantly longer lamp life and lower energy consumption (Correct answer)
- Compliance with NFPA 101 without battery backup
- Brighter red color per IBC requirements
Correct answer: Significantly longer lamp life and lower energy consumption
LED exit signs consume far less energy and have much longer service life than incandescent versions.
Question 7: When an exit sign is located at a door, where must the sign be positioned relative to the door according to NFPA 101?
- Centered above the door opening (Correct answer)
- On the latch side of the door
- At least 18 inches from the door frame
- At floor level adjacent to the door
Correct answer: Centered above the door opening
NFPA 101 requires exit signs at doors to be placed directly above or adjacent to the door in the path of egress travel.
CLC Emergency & Exit Lighting Standards 2
Under NFPA 101, what is the minimum illumination level required at the floor along the path of egress during emergency lighting operation?