F80 F80 Fire Safety Systems 2

Question 1

What is the maximum allowable distance between sprinkler heads in a standard light hazard occupancy per NFPA 13?

Accepted Answer

15 feet

Answer

NFPA 13 allows a maximum of 15 feet between sprinkler heads in light hazard occupancies.

Question 2

Which type of fire detection system continuously monitors the rate of temperature rise in a protected area?

Accepted Answer

Rate-of-rise heat detector

Answer

Rate-of-rise heat detectors activate when temperature increases faster than a set rate, typically 12–15°F per minute.

Question 3

Under NFPA 72, what is the minimum audible alarm level required in sleeping areas?

Accepted Answer

75 dB

Answer

NFPA 72 requires a minimum of 75 dB at the pillow level in sleeping areas to ensure occupants are awakened.

Question 4

A dry-pipe sprinkler system is most appropriate for which environment?

Accepted Answer

Areas subject to freezing temperatures

Answer

Dry-pipe systems use pressurized air or nitrogen instead of water, preventing freezing in cold environments.

Question 5

What is the primary function of a fire damper in an HVAC system?

Accepted Answer

Close automatically to stop fire spread through ductwork

Answer

Fire dampers close automatically when a fusible link melts, preventing fire from traveling through HVAC ductwork.

F80 Practice Test