Fire Protection & Life Safety Systems Flashcards

According to NFPA 13, what is the minimum water supply duration required for a light hazard sprinkler system?

Answer: 30 minutes

NFPA 13 requires a minimum 30-minute water supply duration for light hazard occupancies.

Which type of sprinkler system is most appropriate for a building where pipes may be subject to freezing temperatures?

Answer: Dry pipe system

A dry pipe system keeps the pipes filled with pressurized air rather than water, making it suitable for unheated spaces subject to freezing.

Under the International Building Code (IBC), what is the maximum travel distance to an exit in a fully sprinklered business occupancy?

Answer: 300 feet

The IBC allows a maximum travel distance of 300 feet in sprinklered business occupancies, increased from the 200-foot unsprinklered limit.

What is the purpose of a fire department connection (FDC) on a sprinkler system?

Answer: To allow firefighters to supplement system water supply

The FDC allows fire department pumper trucks to inject additional water pressure and volume into the sprinkler system during a fire.

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

Answer: NFPA 72

NFPA 72, the National Fire Alarm and Signaling Code, governs the design, installation, testing, and maintenance of fire alarm systems.

A building inspector finds that the exit signs in a corridor are not illuminated. Which code primarily addresses this requirement?

Answer: IBC Chapter 10

IBC Chapter 10 (Means of Egress) contains requirements for exit sign illumination, including continuous illumination at not less than 5 foot-candles.

What minimum fire-resistance rating is required for exit enclosures (stairwells) in buildings four or more stories above grade in accordance with the IBC?

Answer: 2 hours

The IBC requires exit enclosures in buildings four or more stories above grade plane to have a minimum 2-hour fire-resistance rating.