Fire Detection & Suppression Systems Flashcards

Which type of smoke detector is most effective at detecting slow, smoldering fires?

Answer: Photoelectric detector

Photoelectric detectors use a light beam and sensor to detect the larger particles produced by slow, smoldering fires more effectively than ionization detectors.

A wet pipe sprinkler system differs from a dry pipe system primarily because:

Answer: Wet pipe pipes are filled with pressurized water at all times

In a wet pipe sprinkler system, the pipes are constantly filled with pressurized water, allowing immediate discharge when a sprinkler head fuses.

What is the primary purpose of a fire alarm control panel (FACP)?

Answer: To monitor initiating devices and control notification appliances

The FACP monitors all initiating devices such as detectors and pull stations, and controls notification appliances like horns and strobes.

In a pre-action sprinkler system, water enters the pipes when:

Answer: A detection device activates AND a sprinkler head fuses

Pre-action systems require both a detection event and a fused sprinkler head before water discharges, providing double confirmation to prevent accidental discharge.

What does the acronym 'PASS' refer to in fire extinguisher operation?

Answer: Pull, Aim, Squeeze, Sweep

PASS stands for Pull the pin, Aim at the base of the fire, Squeeze the handle, and Sweep side to side.

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

Answer: NFPA 13

NFPA 13 is the Standard for the Installation of Sprinkler Systems, covering design and installation requirements.

A heat detector set to activate at 135°F (57°C) is classified as which type?

Answer: Fixed-temperature detector

A fixed-temperature heat detector activates when the ambient temperature reaches a specific pre-set threshold, such as 135°F.