FPE Fire Detection & Alarm Systems

Question 1

Which NFPA standard is the primary governing document for fire detection and alarm signaling systems in the United States?

Accepted Answer

NFPA 72

Answer

NFPA 72, the National Fire Alarm and Signaling Code, establishes minimum requirements for the installation, performance, inspection, testing, and maintenance of fire alarm and signaling systems.

Question 2

What type of smoke detector uses light-scattering technology and is most effective at detecting slow, smoldering fires?

Accepted Answer

Photoelectric-type detector

Answer

Photoelectric detectors use a light source and photosensor; smoke particles from smoldering fires scatter light onto the sensor, making them more responsive to large-particle, low-temperature combustion.

Question 3

Per NFPA 72, what is the maximum mounting height for the operable part of a manual fire alarm pull station above finished floor level?

Accepted Answer

60 inches

Answer

NFPA 72 Section 17.14.8.1 requires the operable part of a manual fire alarm box to be between 42 and 60 inches above the floor, with 60 inches being the maximum.

Question 4

What is the maximum time delay permitted between the start of sprinkler waterflow and transmission of a waterflow alarm signal per NFPA 72?

Accepted Answer

90 seconds

Answer

NFPA 72 Section 17.12.3.1 requires that the waterflow alarm signal be initiated within 90 seconds of waterflow equaling or exceeding that from a single sprinkler.

Question 5

According to NFPA 72, what minimum sound pressure level must audible notification appliances produce in sleeping areas?

Accepted Answer

75 dBA

Answer

NFPA 72 requires audible signals in sleeping areas to produce a minimum of 75 dBA measured at the pillow level to reliably awaken sleeping occupants.

(FPE) Fire Protection Engineer Certification Practice Test

(FPE) Fire Protection Engineer Certification Practice Test

FPE Fire Detection & Alarm Systems