F80 F80 Code Requirements 2

Question 1

Under NFPA 72, what is the maximum spacing allowed between smoke detectors on a smooth ceiling?

Accepted Answer

30 feet

Answer

NFPA 72 allows a maximum 30-foot spacing between smoke detectors on smooth ceilings with a 15-foot maximum distance from any wall.

Question 2

Which NFPA standard governs the installation of fire alarm systems in the United States?

Accepted Answer

NFPA 72

Answer

NFPA 72, the National Fire Alarm and Signaling Code, governs fire alarm system installation requirements.

Question 3

According to NFPA 72, a fire alarm control unit (FACU) must be listed by a nationally recognized testing laboratory (NRTL) and comply with which standard?

Accepted Answer

UL 864

Answer

UL 864 is the standard for Control Units and Accessories for Fire Alarm Systems, which FACUs must comply with.

Question 4

What is the minimum audible alarm level required by NFPA 72 in a sleeping area above the ambient sound level?

Accepted Answer

15 dB

Answer

NFPA 72 requires audible alarm appliances to produce a sound level at least 15 dB above the average ambient sound level in sleeping areas.

Question 5

How often must a fire alarm system's batteries be replaced per NFPA 72 recommendations to ensure reliability?

Accepted Answer

Every 4 years

Answer

NFPA 72 recommends sealed lead-acid batteries used for fire alarm systems be replaced every 4 years.

F80 Practice Test

F80 Practice Test

F80 F80 Code Requirements 2