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NEW QUESTION # 39
With all notification appliances operating, what is the maximum sound pressure level, combined with the ambient sound pressure level, at the minimum hearing distance allowed by code?
- A. 115 dBA
- B. 110 dBA
- C. 105 dBA
- D. 100 dBA
Answer: C
Explanation:
NFPA 72 places amaximum allowable sound pressure levelto prevent hearing damage or discomfort in occupied areas.
NFPA 72 (2022), Section 18.4.1.5:
"The total sound pressure level produced by the fire alarm system, including ambient noise, shall not exceed
105 dBA at the minimum hearing distance from the audible appliance."
This ensures alarm audibilitywithout causing harm.
Correct answer: B. 105 dBA
NEW QUESTION # 40
Within a fire alarm control unit, what is the maximum delay in seconds for alarm system responses after the initiation device has been activated?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
After an initiating device (like a smoke detector or pull station) is triggered, NFPA 72 limits how long the control unit can delay its responseto initiating notification appliances and/or signal transmission.
NFPA 72 (2022), Section 10.11.1.1:
"Fire alarm and emergency alarm initiating devices shall be arranged to initiate the intended alarm or response within 10 seconds unless otherwise permitted. The total delay shall not exceed 30 seconds." Correct answer: C. 30 seconds
NEW QUESTION # 41
Notification appliances in a fire alarm system produce a distinctive evacuation signal that does which of the following?
- A. Alternates on for 1 second, off for 1 second
- B. Provides a 3-pulse temporal pattern
- C. Alternates on for 1 second, off for 1.5 seconds
- D. Provides a 4-pulse temporal pattern
Answer: B
Explanation:
NFPA 72 mandates astandardized evacuation signal patternto ensure building occupants can recognize and respond to an emergency.
NFPA 72 (2022), Section 18.4.2.1:
"Where audible appliances are used for evacuation or relocation, the alarm signal shall be the Temporal- Three Evacuation Signal pattern (three short audible signals followed by a pause)." This pattern is commonly known as theTemporal-3orT-3signal.
Correct answer: C. Provides a 3-pulse temporal pattern
NEW QUESTION # 42
An off-normal signal shall be initiated during which of the following travel distances of the valve control apparatus from its normal position?
- A. 1/4
- B. 1/2
- C. 1/5
- D. 1/3
Answer: A
Explanation:
This question is referring tosupervisory signaling for control valvesin sprinkler systems. When a valve begins to move from its normal (open) position, the fire alarm system must detect and signal thisbefore it reaches too far out of position.
NFPA 72 (2022), Section 17.16.1.3:
"Off-normal signal shall be initiated during the first one-quarter (1/4) of the valve travel distance from its normal position." This ensures timely detection if someone begins to close a sprinkler valve, which could disable the fire suppression system.
Correct answer: B. 1/4
NEW QUESTION # 43
Load testing of the control unit's VRLA batteries reveals that they must be replaced. Which two of the following are requirements for the replacement of VRLA batteries? (Choose two.)
- A. Batteries shall be listed by a nationally recognized testing laboratory.
- B. Batteries shall be approved by the authority having jurisdiction.
- C. Batteries shall be the same make and model as those being replaced.
- D. Batteries shall be marked with the month and year of manufacture.
Answer: A,D
Explanation:
Replacement batteries used in fire alarm systems must meet strict safety and documentation requirements:
NFPA 72 (2022), Section 10.6.10.1.2:
"Batteries shall be marked with the month and year of manufacture."
NFPA 72 (2022), Section 10.6.10.2:
"Batteries shall be listed for the intended purpose by a nationally recognized testing laboratory (NRTL)." There isno requirementthat replacement batteries must be the same make/model, though compatibility must be ensured.
Correct answers:
* Batteries shall be listed by a nationally recognized testing laboratory
* Batteries shall be marked with the month and year of manufacture
NEW QUESTION # 44
Smoke alarms in one- and two-family dwellings shall be replaced when they fail to operate or they have been in place a maximum of how many years?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
Explanation:
NFPA 72 requires smoke alarms in residential settings to be replaced every10 years, even if they have not shown any signs of failure.
NFPA 72 (2022), Section 29.8.1.4:
"Unless otherwise recommended by the manufacturer, smoke alarms shall be replaced when they fail to respond to operability tests or have been in service for 10 years." Correct answer: C. 10
NEW QUESTION # 45
What is the maximum number of attempts that a digital alarm communicator transmitter (DACT) is allowed to make before a trouble condition shall be indicated?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
Explanation:
DACTs must attempt communication within a certain number of tries. If all attempts fail, the panel must initiate atrouble condition.
NFPA 72 (2022), Section 26.6.4.4.4.2.1:
"A maximum of 10 attempts on one line and 2 attempts on the other line shall be permitted before a trouble signal is indicated." That totals12 attemptsbefore declaring communication failure.
NEW QUESTION # 46
After successful completion of an inspection, who shall be responsible for maintaining the permanent records?
- A. AHJ
- B. Owner
- C. Fire marshal
- D. Alarm contractor
Answer: B
Explanation:
NFPA 72 assigns theresponsibility for maintaining inspection and testing recordsto the owner or their designated representative. This ensures records are available when needed by the AHJ or for future inspections.
NFPA 72 (2022), Section 14.6.1:
"The property or building owner or the owner's designated representative shall be responsible for the inspection, testing, and maintenance of the system and for maintaining the records." This responsibility cannot be offloaded to the contractor or fire marshal unless formally designated by the owner.
Correct answer: D. Owner
NEW QUESTION # 47
Which three of the following are how a McCulloh transmitter should be inspected? (Choose three.)
- A. Physical condition
- B. System normal condition
- C. Verify location
- D. Distinct waterflow condition
Answer: A,B,C
Explanation:
McCulloh transmitters are part of older fire alarm systems but are still maintained in some jurisdictions.
Inspection focuses ongeneral condition,correct system status, andlocation verification.
NFPA 72 (2022), Table 14.3.1 - Inspection Frequencies:
UnderMcCulloh Transmitter:
* "Inspect physical condition"
* "Verify location"
* "Confirm system normal condition"
"Distinct waterflow condition" refers to alarm testing and isnotpart of theinspectionphase.
Correct answers:
* Physical condition
* System normal condition
* Verify location
NEW QUESTION # 48
Which two of the following are needed to perform a periodic test of a projected beam type smoke detector? (Choose two.)
- A. Blocking the transmitter
- B. Using an optical filter
- C. Introducing smoke
- D. Using a listed test switch
Answer: B,D
Explanation:
Projected beam smoke detectors are testednot with actual smoke, but by simulating obscuration usinglisted toolssuch as atest switchoroptical filter.
NFPA 72 (2022), Section 14.4.2.2.6.2:
"Projected beam-type smoke detectors shall be tested by introducing an obscuration in the beam path using an optical density filter or a method approved by the manufacturer." Some systems includelisted test switchesfor functional checks without disrupting alignment.
Correct answer: Using a listed test switch, Using an optical filter
NEW QUESTION # 49
After 15 years, what should be done with nonrestorable, spot-type heat detectors in lieu of testing?
- A. Replace 5 devices
- B. Replace 2 devices
- C. Replace 15 devices
- D. Replace all devices
Answer: D
Explanation:
If you choosenot to send a sample of devices to a lab for testing, thenall nonrestorable, fixed- temperature spot-type heat detectorsmust be replaced after 15 years.
NFPA 72 (2022), Section 14.4.4.4.1:
"After 15 years from the date of installation, all fixed-temperature, nonrestorable heat detectors shall be replaced or tested using a method approved by the manufacturer." If testing isnot performed, thenreplacement of all devices is required.
Correct answer: D. Replace all devices
NEW QUESTION # 50
Primary power supplies shall be functionally tested at which interval?
- A. Every 3 months
- B. Every 12 months
- C. Every month
- D. Every 6 months
Answer: B
Explanation:
Thefunctional test of the primary power supplyensures that the fire alarm system responds properly to a loss of power and transitions to secondary power.
NFPA 72 (2022), Table 14.4.3.2 - Test Methods and Frequencies:
Primary power supply is required to be testedannually, which equates toevery 12 months.
Correct answer: D. Every 12 months
NEW QUESTION # 51
Records of inspections, testing, and maintenance shall be provided in accordance with which section of NFPA 72?
- A. 14.6.3
- B. 7.8.2
- C. 10.5.3
- D. 7.6.6
Answer: A
Explanation:
This is a documentation requirement, and it's found inChapter 14of NFPA 72, which deals withInspection, Testing, and Maintenance.
NFPA 72 (2022), Section 14.6.3.1:
"Records shall be retained for a period of one year after the next test and until the next test is performed.
Records shall be made available to the authority having jurisdiction upon request." Section14.6.3lays out theformat, retention, and content requirementsfor inspection, testing, and maintenance records.
Correct answer: D. 14.6.3
Tip: For questions involvingrecordkeeping, head straight toChapter 14, especially section14.6.
NEW QUESTION # 52
What is the adjustment range for smoke detectors that have a provision for field adjustment of sensitivity?
- A. No less than 0.6% per foot (1.95% per meter)
- B. No more than 1.2% per foot (3.90% per meter)
- C. No less than 1.2% per foot (3.90% per meter)
- D. No more than 0.6% per foot (1.95% per meter)
Answer: A
Explanation:
For smoke detectors that allow field sensitivity adjustment, NFPA 72 provides a minimum allowable sensitivity range to ensure the detector still provides proper protection.
NFPA 72 (2022), Section 17.7.3.2.1.1.3:
"If a detector has a field-adjustable sensitivity, the range shall be not less than 0.6 percent/ftobscuration (1.95 percent/m)." This means theminimum range must include 0.6%/ft- detectors can be more sensitive, but not less.
Correct answer: A. No less than 0.6% per foot (1.95% per meter)
NEW QUESTION # 53
After 15 years from initial installation, all fixed-temperature, nonrestorable heat detectors shall be replaced or have how many detectors per 100 laboratories tested?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
Heat detectors that arenonrestorablemust either be replaced after 15 years or undergo sample testing. If testing is chosen,at least 4 detectors per 100of the same model and environment must be tested in an approved lab.
NFPA 72 (2022), Section 14.4.4.4.1:
"After 15 years from the date of installation, all fixed-temperature, nonrestorable heat detectors shall be replaced or tested using a laboratory method... A minimum of 4 detectors shall be tested for each 100 detectors installed." This ensures detector reliability over time.
Correct answer: B. 4
NEW QUESTION # 54
Which is true of the phone lines on a Digital Alarm Communicator Transmitter (DACT) when no other methods are in use?
- A. Test signal must be sent every 24 hours.
- B. Two separate phone lines are required.
- C. Phone lines must be dedicated.
- D. Primary line should be connected to the PSTN.
Answer: B
Explanation:
When aDACTis the only method of off-premises signal transmission, itmustbe connected totwo separate telephone linesto ensure redundancy in case one line fails.
NFPA 72 (2022), Section 26.6.4.4.4.1:
"DACTs shall be connected to two separate phone lines (one primary, one secondary). Loss of the primary line shall result in a supervisory signal." This redundancy ensures system reliability when using traditional telephone-based communication.
Correct answer: D. Two separate phone lines are required
NEW QUESTION # 55
According to NFPA 72, which date shall be marked on batteries?
- A. Month and year of manufacture
- B. Month and year of installation
- C. Month and year of inspection
- D. Month and year of expiration
Answer: B
Explanation:
NFPA 72 requires theinstallation dateof batteries to be clearly marked for maintenance and service life tracking.
NFPA 72 (2022), Section 10.6.10.1.1:
"Each battery shall be marked with the month and year of installation." This helps ensure timely testing, maintenance, and replacement based on age.
Correct answer: C. Month and year of installation
NEW QUESTION # 56
In private mode systems, what is the audibility requirement?
- A. Minimum 75 dBA
- B. Minimum 85 dBA
- C. 10 dBA above ambient
- D. 15 dBA above ambient
Answer: C
Explanation:
Private mode signaling is used in locations not open to the public (e.g., hospitals, certain office buildings).
The audibility requirement for private mode differs from public mode.
NFPA 72 (2022), Section 18.4.5.3:
"For private mode audible appliances, the sound level shall be at least 10 dBA above the averageambient sound level..." This ensures the signal is heard clearly in the intended space without exceeding what's necessary.
Correct answer: C. 10 dBA above ambient
NEW QUESTION # 57
Which three of the following branch circuit characteristics are required for circuit identification and accessibility of the fire alarm equipment's primary power supply? (Choose three.)
- A. The system circuit disconnect shall be permanently identified as "Fire Alarm."
- B. Where a circuit breaker is the disconnecting means, a breaker locking device shall be labeled.
- C. The system circuit disconnect shall be permanently identified at the control unit.
- D. Where a circuit breaker is the disconnecting means, a breaker locking device shall be installed.
Answer: A,C,D
Explanation:
NFPA 72 requires strict identification and protection of theprimary power supplycircuit to the fire alarm control unit (FACU) to prevent unauthorized disconnection.
NFPA 72 (2022), Section 10.6.5.2.1:
"The circuit disconnecting means shall be identified as 'FIRE ALARM CIRCUIT' at the point of disconnect and at the fire alarm control unit." Section 10.6.5.2.2:
"A circuit breaker used as the disconnecting means shall be protected from unauthorized operation by a locking device." There isno requirementfor the locking device to be labeled - it only must be installed.
Correct answers:
* The system circuit disconnect shall be permanently identified as "Fire Alarm."
* The system circuit disconnect shall be permanently identified at the control unit.
* Where a circuit breaker is the disconnecting means, a breaker locking device shall be installed.
NEW QUESTION # 58
An abnormal condition where a system, component, or function is out of order, and the condition can result in the system or unit not functioning when required is called which of the following terms?
- A. Operational
- B. Impairment
- C. Intermittent
- D. Supervisory
Answer: B
Explanation:
Animpairmentis a formal condition defined in NFPA 72 when a system or portion of it is not functional and may fail during an emergency. This is a critical safety concern.
NFPA 72 (2022), Section 3.3.149 - Impairment (Fire Alarm Systems):
"A condition where a fire protection or life safety system or a portion thereof is out of service." Also supported by Section 10.21.1:
Which details handling of system impairments and the need for proper management, notification, and restoration.
Correct answer: A. Impairment
NEW QUESTION # 59
How often does a technician test the manual operation of a master box on a public emergency alarm reporting system?
- A. Annually
- B. Monthly
- C. Quarterly
- D. Semiannually
Answer: A
Explanation:
Amaster boxis a type of manual fire alarm box connected directly to a public emergency reporting system (typically a municipal or fire department network). NFPA 72 requires these to be testedannuallyto ensure they still properly send signals to the public system.
NFPA 72 (2022), Table 14.4.3.2 - Inspection, Testing, and Maintenance Frequencies:
UnderPublic Emergency Alarm Reporting Systems#Master Boxes:
Test Frequency:Annually
Method:"Manual operation and verification of signal receipt at the public communication center." The test confirms the box functions mechanically and that the signal is received by the appropriate monitoring point (e.g., fire department dispatch).
Correct answer: D. Annually
NEW QUESTION # 60
Which NFPA standard regulates how to perform the test of engine driven generator?
- A. NFPA 70
- B. NFPA 72
- C. NFPA 110
- D. NFPA 101
Answer: C
Explanation:
Engine-driven generators used for emergency power arenot governed directly by NFPA 72. Instead, their installation and testing requirements are found in:
NFPA 110 - Standard for Emergency and Standby Power Systems
NFPA 110 (2022), Chapter 8details howengine-driven generatorsmust be tested, including runtime, load testing, and maintenance intervals.
NFPA 72 references NFPA 110whenever standby/emergency power is used for fire alarm systems.
Correct answer: D. NFPA 110
NEW QUESTION # 61
When is the elevator recall permitted to send a supervisory signal in lieu of an alarm signal?
- A. Where approved by the system designer
- B. Where approved by the insurance company
- C. Where approved by the authority having jurisdiction
- D. Where approved by the building owner
Answer: C
Explanation:
Elevator recall typically generates analarm signal, but under specific circumstances, theAHJ may approve the use of a supervisory signalinstead.
NFPA 72 (2022), Section 21.3.3.3 (Exception):
"Where permitted by the AHJ, activation of elevator recall initiating devices shall be permitted to result in a supervisory signal." This allows flexibilitywith AHJ approval, not at the discretion of designers or owners.
Correct answer: A. Where approved by the authority having jurisdiction
NEW QUESTION # 62
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