S95 Notification Appliances 1 — Questions and Answers
Question 1: Per NFPA 72, what is the minimum candela rating for a wall-mounted strobe installed in a corridor?
- 15 cd (Correct answer)
- 30 cd
- 75 cd
- 110 cd
Correct answer: 15 cd
NFPA 72 requires a minimum of 15 candela for wall-mounted strobes installed in corridors, which is the lowest minimum candela tier.
Question 2: Strobe synchronization is required by NFPA 72 when more than how many strobes are visible from a single point?
- One (Correct answer)
- Two
- Three
- Four
Correct answer: One
When more than one strobe is visible from a single location (i.e., two or more are in view), NFPA 72 requires all strobes in that field of view to be synchronized.
Question 3: What is the standard emergency evacuation signal required by NFPA 72 for audible notification appliances?
- Temporal 1 pattern
- Temporal 3 pattern (Correct answer)
- Continuous tone
- Temporal 4 pattern
Correct answer: Temporal 3 pattern
NFPA 72 mandates the temporal 3 (T-3) pattern as the standard emergency evacuation signal, consisting of three equal pulses followed by a pause.
Question 4: Per NFPA 72, audible notification appliances must produce a sound level at least how many dB above the average ambient sound level?
- 5 dB
- 10 dB
- 15 dB (Correct answer)
- 20 dB
Correct answer: 15 dB
NFPA 72 requires audible appliances to produce a minimum of 15 dB above the average ambient sound level to ensure the alarm is clearly audible.
Question 5: Wall-mounted notification appliances must be installed at a height between which of the following ranges above the finished floor per NFPA 72?
- 60–72 inches AFF
- 80–96 inches AFF (Correct answer)
- 72–84 inches AFF
- 84–108 inches AFF
Correct answer: 80–96 inches AFF
NFPA 72 requires wall-mounted notification appliances to be mounted between 80 inches (6'-8") and 96 inches (8'-0") above the finished floor.
Question 6: Which type of notification appliance is specifically required to provide emergency notification for building occupants with hearing impairments?
- Horn
- Bell
- Visual strobe (Correct answer)
- Speaker
Correct answer: Visual strobe
Visual notification appliances (strobes) are required by both ADA and NFPA 72 to provide emergency notification for individuals who cannot perceive audible alarms.
Question 7: In sleeping areas, NFPA 72 requires audible alarms to produce a minimum sound level of how many dB at the pillow?
- 70 dB
- 75 dB (Correct answer)
- 85 dB
- 90 dB
Correct answer: 75 dB
NFPA 72 requires a minimum of 75 dB at the pillow level in sleeping areas to reliably awaken occupants during an alarm.
S95 Notification Appliances 1
Per NFPA 72, what is the minimum candela rating for a wall-mounted strobe installed in a corridor?