NICET Fire Alarm Systems Level III

Per IBC Section 907.2.1, a manual fire alarm system is required in Group A occupancies with an occupant load of at least how many persons?

• A100
• B200
• C300
• D500

Per IBC Section 907.2.3, a manual fire alarm system with an emergency voice/alarm communication system is required in Group E occupancies having an occupant load of how many persons or more?

• A30
• B50
• C100
• D300

Per IBC 907.2.2, a manual fire alarm system is required in Group B occupancies when the combined Group B occupant load on all floors is at least how many persons?

• A100
• B300
• C500
• D1,000

Per IBC Section 907.2.8.1, a manual fire alarm system is required in Group R-1 occupancies unless which exception applies?

• AThe building is not more than 35 ft above the lowest level of fire department access
• BThe building is two stories or less, units are 1-hour separated, and each exits outside
• CThe building is protected throughout by an automatic sprinkler system with quick-response…
• DThe building contains a single sleeping unit that is separately metered and owned

Per IBC 907.2.9, Group R-2 occupancies require a manual fire alarm system when the building has any of the following EXCEPT:

• AA dwelling unit is located three or more stories above the lowest level of exit discharge
• BThe building contains more than 16 dwelling units or sleeping units in total
• CA dwelling unit is located more than one story below the highest level of exit discharge…
• DThe building is a detached one-family dwelling with all rooms on a single level

Per NFPA 72 (2022) Chapter 17, what nominal on-center spacing is used for spot-type smoke detectors on a smooth ceiling in the absence of performance-based design criteria?

• A20 ft
• B25 ft
• C30 ft
• D50 ft

Per NFPA 72 (2022) Chapter 17, a spot-type smoke detector on a smooth ceiling must be no farther than what fraction of the nominal spacing from any wall, measured at right angles?

• A0.3 times the nominal spacing
• B0.5 times the nominal spacing
• C0.7 times the nominal spacing
• D1.0 times the nominal spacing

Per NFPA 72 (2022) Chapter 17, a spot-type heat detector with a listed spacing of 50 ft on a smooth ceiling must be located no farther than how many feet from any wall?

• A10 ft
• B17.5 ft
• C25 ft
• D35 ft

How does NFPA 72 (2022) define the average ambient sound level used to set audible notification levels?

• AThe root-mean-square A-weighted sound pressure level measured over a 24-hour period
• BThe peak A-weighted sound pressure level recorded during any 5-minute sample
• CThe arithmetic mean of three 15-minute samples taken during normal occupancy
• DThe continuous sound pressure level averaged over one hour of peak occupancy

Per NFPA 72 (2022) Chapter 18, public mode audible signals must have a sound level of at least how many dB above the average ambient sound level?

• A5 dBA
• B10 dBA
• C15 dBA
• D20 dBA

Per NFPA 72 (2022) Chapter 18, private mode audible signals must have a sound level of at least how many dB above the average ambient sound level?

• A5 dBA
• B10 dBA
• C15 dBA
• D20 dBA

Per NFPA 72 (2022) Chapter 18, audible appliances installed to awaken occupants in sleeping areas must produce what signal?

• AA low-frequency signal with a fundamental frequency of 520 Hz plus or minus 10 percent
• BA pure tone at 1000 Hz produced by any listed horn rated at least 85 dBA
• CA 440 Hz sine wave delivered by a speaker circuit driven at 70.7 V
• DA high-frequency 2000 Hz tone synchronized to the temporal-three pattern

Using the NFPA 72 (2022) room spacing table for wall-mounted visible notification appliances, a single appliance in a 20 ft x 20 ft room requires what minimum effective intensity?

• A15 cd
• B30 cd
• C75 cd
• D110 cd

Using the NFPA 72 (2022) room spacing table for wall-mounted visible notification appliances, a single appliance in a 30 ft x 30 ft room requires what minimum effective intensity?

• A15 cd
• B30 cd
• C34 cd
• D60 cd

Per NFPA 72 (2022) Chapter 18, a wall-mounted visible notification appliance must be installed with its entire lens within what range above the finished floor?

• ANot less than 60 in. and not more than 80 in. above the finished floor
• BNot less than 80 in. and not more than 96 in. above the finished floor
• CNot less than 96 in. and not more than 120 in. above the finished floor
• DNot less than 48 in. and not more than 72 in. above the finished floor

Per NFPA 72 (2022) Chapter 18, when must visible notification appliances in the same room or adjacent space be arranged to flash in synchronization?

• AWhenever two appliances are installed on the same notification appliance circuit
• BOnly where two appliances are powered from two different fire alarm control units
• CWhere more than two appliances or synchronized groups share one field of view
• DOnly in corridors longer than 100 ft between the two nearest exit doors

Per NFPA 72 (2022) Chapter 18, what is the permitted flash rate range for visible notification appliances throughout their listed voltage range?

• ANot less than 0.5 Hz and not more than 1 Hz
• BNot less than 1 Hz and not more than 2 Hz
• CNot less than 2 Hz and not more than 5 Hz
• DNot less than 3 Hz and not more than 10 Hz

Per NFPA 72 (2022), what governs the acceptable voltage at the most distant notification appliance on a NAC under full alarm load?

• AA fixed 5 percent drop from the nominal system voltage
• BA fixed 10 percent drop from the nominal system voltage
• CThe appliance's listed minimum operating voltage
• DA fixed 20 percent drop from the nominal system voltage

A NAC has 1.8 A of full alarm load. The wire run is 500 ft (one-way) of 14 AWG copper conductor. Using approximate resistance of 2.525 ohms per 1000 ft, what is the approximate one-way voltage drop?

• A1.14 V
• B2.27 V
• C4.55 V
• D9.10 V

A 24 VDC NAC begins at 20.4 V (worst-case battery). The full-load round-trip voltage drop must not bring the last appliance below 16 V (its listed minimum). What is the maximum allowable round-trip voltage drop?

• A2.4 V
• B4.0 V
• C4.4 V
• D8.0 V

Per NFPA 72 (2022) 10.6.7.2.1, the secondary (battery) power supply for a protected premises fire alarm system shall be capable of operating the system under quiescent (standby) load for at least how long?

• A4 hours
• B12 hours
• C24 hours
• D60 hours

After the 24-hour standby period, the secondary power supply for a protected premises fire alarm system using non-voice notification must additionally support how long of alarm operation?

• A5 minutes
• B15 minutes
• C30 minutes
• D60 minutes

A fire alarm panel draws 0.25 A in standby and 2.5 A in alarm, and must support 24 hours of standby plus 5 minutes of alarm. What is the calculated amp-hour demand BEFORE the NFPA 72 safety margin is applied?

• A6.21 AH
• B6.50 AH
• C12.50 AH
• D60.21 AH

Per NFPA 72 (2022) Chapter 24, what is the purpose of a Mass Notification System (MNS)?

• AReplacing the fire alarm system as the primary life safety system in the building
• BDelivering information and instructions to occupants using intelligible voice and visible…
• CReleasing sprinkler and clean agent suppression systems from a remote command location
• DRecalling all elevators to the designated level and holding their doors open

Per NFPA 72 (2022) 24.4.2, in a combined fire alarm/MNS system, which signal generally takes priority?

• AFire alarm always takes precedence over every other signal in the building
• BMass notification takes precedence where the documented risk analysis assigns it higher p…
• CWhichever of the two signals was initiated first retains control until it is reset
• DTrouble signals override both, because a system fault must be resolved first

Per NFPA 72 (2022) Chapter 12, pathway survivability Level 0 means:

• APathway provides 2-hour fire-rated protection
• BNo pathway survivability required
• CPathway uses MI cable only
• DPathway is fully encased in concrete

Per NFPA 72 (2022) 12.4, what distinguishes pathway survivability Level 3 from Level 2?

• ALevel 3 requires mineral-insulated cable while Level 2 permits any fire-rated cable
• BLevel 3 requires a 3-hour rating while Level 2 requires only a 2-hour rating
• CLevel 3 applies a Level 2 method in a building fully protected by an automatic sprinkler…
• DLevel 3 requires Class A circuits while Level 2 permits Class B circuits

Per NFPA 72 (2022) Chapter 24 and IBC Section 916, in-building two-way emergency responder communication systems (BDA/ERCES) provide coverage primarily for:

• AOccupants who need voice instructions while evacuating the building
• BFirst responder radios inside buildings where outside coverage is inadequate
• CTenant cellular telephones operating on commercial carrier frequencies
• DPublic address paging used for routine non-emergency announcements

Per IFC Section 510 and NFPA 1225, in-building emergency responder radio coverage generally requires what minimum inbound signal strength within the building?

• A-65 dBm
• B-85 dBm
• C-95 dBm
• D-120 dBm

Per NFPA 72 (2022) 12.3.1, a Class A pathway is characterized by which behavior?

• AIt carries signals over a single path and reports faults only at annual test
• BIt includes a redundant path so operational capability continues past a single open
• CIt must be installed in listed fiber optic cable to obtain the designation
• DIt operates from a dedicated secondary power supply independent of the panel

Per NFPA 72 (2022) 12.3.6, how many pathways must a Class N pathway provide to each device, and what is the exception?

• AOne pathway, with no exception permitted for any connected device
• BTwo or more, except a single pathway where only one device is served
• CThree pathways, except in buildings fully protected by sprinklers
• DFour pathways, except where the network is built on listed optical fiber

When designing an addressable fire alarm system, the maximum number of addressable devices per SLC is established by:

• AIBC Chapter 9, which sets a uniform ceiling on devices per circuit
• BThe control unit manufacturer's published limits and product listing
• CNFPA 72, which fixes the maximum at 250 devices on any single loop
• DLocal AHJ rules of thumb, applied uniformly across the jurisdiction

A horn/strobe is listed for a 24 V minimum and 33 V maximum operating range. The NAC source is 20.4 V at worst-case battery. What is the correct design conclusion?

• AAllow up to 9.0 V of loop drop because the appliance tolerates 33 V at the top end
• BAllow up to 4.4 V of loop drop, matching the usual 16 V minimum appliance
• CReject the arrangement because the source is already below the listed minimum voltage
• DAccept the arrangement because alarm operation is brief and voltage recovers quickly

Per IBC 907.2.6, Group I-2 occupancies (hospitals, nursing homes) require what type of fire alarm system?

• AA manual fire alarm system only, with no automatic detection required
• BAn automatic smoke detection system only, with no manual pull stations
• CA manual fire alarm system plus an automatic smoke detection system
• DNo fire alarm system at all where the building is fully sprinklered

Per IBC 907.2.13, an automatic smoke detection system and emergency voice/alarm communication system are required in high-rise buildings, which are buildings with an occupied floor located more than how many feet above the lowest level of fire department vehicle access?

• A55 ft
• B75 ft
• C120 ft
• D420 ft

Per IBC Section 907.5.2.2, the emergency voice/alarm communication system in a high-rise building must be capable of selectively addressing which zones?

• AThe entire building simultaneously, with no zone selection provided
• BThe alarm floor, the floor above, and the floor below, plus an all-call capability
• CAdjacent buildings connected by a pedestrian bridge or shared plaza
• DThe alarm floor only, with manual paging to other floors by telephone

Per NFPA 72 (2022) Chapter 18, what light-output measure must be used when selecting a visible notification appliance rating for design?

• APeak candela
• BEffective intensity
• CAverage candela
• DMaximum candela

Per NFPA 72 (2022) Chapter 18 corridor spacing rules, visible appliances in a corridor not exceeding 20 ft in width must be rated at least what value?

• A15 cd
• B30 cd
• C75 cd
• D110 cd