NICET FAS-II flashcards
NICET FAS-II · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Addressable fire alarm system
- A system in which each initiating and notification device has a unique address so the panel can identify the specific device in alarm or trouble.
- Conventional zone
- A grouping of devices on a circuit that reports only the zone identity, not individual device identity, to the fire alarm control unit.
- Class A circuit
- A supervised circuit that continues to operate after a single open or ground fault because the outgoing and return conductors both terminate at the panel.
- Class B circuit
- A supervised circuit that does not continue to operate after a single open fault; it uses an end-of-line device and has only one path.
- Photoelectric smoke detector
- A spot-type detector that uses light scattering to sense smoke particles and responds best to smoldering fires with larger particles.
- Ionization smoke detector
- A spot-type detector that senses a change in ionization current caused by combustion particles and responds best to flaming fires.
- Waterflow switch retard
- A built-in delay, typically 10 to 60 seconds, that prevents sprinkler waterflow switches from alarming on pressure surges.
- NFPA 72
- The National Fire Alarm and Signaling Code, covering design, installation, testing, inspection, and maintenance of fire alarm systems.
- NEC Article 760
- The National Electrical Code article governing fire alarm system wiring methods, conductor requirements, and installation practices.
- UL 864
- The product standard listing fire alarm control units and related equipment for use in protected premises systems.
- Authority Having Jurisdiction
- The organization or individual that enforces code requirements and approves designs, installations, and modifications.
- Performance-based design
- A design approach that states fire safety goals and demonstrates compliance through engineering analysis rather than prescriptive spacing rules.
- Pathway survivability
- A classification from Level 0 to Level 4 describing how well fire alarm circuit pathways resist fire damage during a fire.
- Smoke detector spacing
- On smooth ceilings, spot smoke detectors are typically spaced at 30 feet, with the first detector within 15 feet of any wall.
- Heat detector spacing
- Standard spot heat detectors are typically spaced at 50 feet on smooth ceilings, with reduced spacing for higher ceilings.
- Manual pull station height
- Pull stations are mounted 42 to 48 inches above the finished floor, within 5 feet of an exit door, and unobstructed.
- Voltage drop formula
- Vdrop equals 2 times length times current times resistance per 1000 feet; verify the last appliance still receives its minimum rated voltage.
- Battery sizing formula
- Required capacity equals standby current times standby hours plus alarm current times alarm minutes divided by 60, with derating.
- Shop drawings
- Detailed installation drawings showing device locations, wiring, conduit routes, and panel schedules, submitted for approval before installation.
- Duct smoke detector location
- Installed in the return or main duct downstream of filters and before branch connections, with access for testing and service.
- End-of-line resistor
- A resistor at the last device of a Class B circuit that allows the panel to supervise the circuit for opens and shorts.
- FPLP cable
- Fire alarm cable listed for use in plenums, where smoke and flame spread requirements are more stringent than riser or general-use cable.
- SLC wiring
- Signaling line circuit wiring for addressable systems, typically shielded twisted pair with the shield grounded at the panel only.
- Above-ceiling accessibility
- Fire alarm devices and junction boxes installed above suspended ceilings must remain accessible for inspection, testing, and maintenance.
- Ground fault
- An unintended connection between a fire alarm conductor and ground, annunciated as a trouble condition by the control unit.
- Survivability Level 4
- The highest pathway protection level, requiring 2-hour fire-rated cable installed within a 2-hour rated enclosure or equivalent.
- Annual device testing
- All initiating devices, notification appliances, and control unit functions are tested at least annually unless the code specifies a different interval.
- Smoke sensitivity test interval
- Detectors are tested for sensitivity within one year of installation and then at alternating years thereafter, per NFPA 72.
- Waterflow alarm time
- A sprinkler waterflow switch must cause an alarm at the fire alarm control unit within 90 seconds of waterflow.
- Battery load test
- An annual test that discharges the secondary battery under load, typically for 30 minutes, to verify capacity.
- Record of completion
- A document certifying that the fire alarm system was installed and tested in accordance with the approved plans and code.
- Test record retention
- Inspection and test records must be retained and made available to the authority having jurisdiction for the required period.