Codes and Standards Flashcards

When a conflict exists between NFPA 72 and an adopted local fire code, which governs?

Answer: The locally adopted code governs, and where more restrictive it takes precedence over NFPA 72

NFPA 72 becomes enforceable only when adopted by a jurisdiction; the local authority's adopted codes govern, and more restrictive local requirements take precedence.

In the context of NFPA 72, the term 'listed' applied to fire alarm equipment means the equipment:

Answer: Has been evaluated by an approved testing laboratory and found to meet applicable standards

'Listed' means the equipment has been evaluated by an approved testing laboratory (such as UL or FM) and found to comply with applicable standards for its intended use.

Under NFPA 72, which of the following occupancies is specifically excluded from the requirement to monitor a fire alarm system at a supervising station?

Answer: One- and two-family dwellings

NFPA 72 includes an exception that exempts one- and two-family dwellings from the supervising station monitoring requirement that applies to other occupancies.

NFPA 72 requires that trouble signals produce a sound that is:

Answer: Distinctive from both the fire alarm signal and the supervisory signal

NFPA 72 requires trouble signals to be audibly and/or visually distinctive from both fire alarm signals and supervisory signals so that personnel can differentiate system status conditions.

The Americans with Disabilities Act (ADA) Standards for Accessible Design most directly affects which fire alarm notification appliance requirement?

Answer: Visible (strobe) notification appliances in rooms and common-use areas for persons with hearing impairments

ADA Standards require visible notification appliances (strobes) to be installed in specific locations so that occupants with hearing impairments receive emergency notification.

When a fire alarm system's initiating device circuit develops a wiring fault (open or ground), what type of signal must the fire alarm control unit transmit to the supervising station?

Answer: Trouble signal

NFPA 72 requires the control unit to generate and transmit a trouble signal whenever a wiring fault such as an open circuit or ground fault is detected on an initiating device circuit.

Under NFPA 72, the Authority Having Jurisdiction (AHJ) has the authority to:

Answer: Grant equivalency or alternative means of protection when the intent of the code is met

NFPA 72 grants the AHJ authority to approve alternative materials, methods, or systems when the AHJ determines the intent and level of protection of the code are met.