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NEW QUESTION # 23
How often are manual fire alarm boxes inspected?
- A. Annually
- B. Monthly
- C. Quarterly
- D. Semiannually
Answer: B
Explanation:
Manual fire alarm boxes (pull stations) must bevisually inspected monthlyto ensure accessibility, visibility, and no physical damage.
NFPA 72 (2022), Table 14.3.1 - Inspection Frequencies:
"Manual fire alarm boxes"#Monthly
The inspection verifies the handle is not blocked and the device is clearly labeled.
Correct answer: A. Monthly
NEW QUESTION # 24
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: C
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 # 25
What is the maximum travel distance between two fire alarm boxes measured horizontally on the same floor?
- A. 200 feet (61 meters)
- B. 90 feet (27 meters)
- C. 30 feet (9.1 meters)
- D. 60 feet (18.3 meters)
Answer: A
Explanation:
NFPA 72 sets a maximumhorizontal travel distancebetween manual pull stations (manual fire alarm boxes) to ensure accessibility in large spaces.
NFPA 72 (2022), Section 17.14.6.4:
"The maximum travel distance to a manual fire alarm box shall not exceed 200 ft (61 m)." This is for accessibility so occupants can reach a pull station quickly in an emergency.
Correct answer: D. 200 feet (61 meters)
NEW QUESTION # 26
Which three of the following are how a McCulloh transmitter should be inspected? (Choose three.)
- A. System normal condition
- B. Distinct waterflow condition
- C. Physical condition
- D. Verify location
Answer: A,C,D
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 # 27
According to NFPA 72, which statement is true as it pertains to the testing of audible alarm notification appliances?
- A. Sound pressure levels are required to be taken in sleeping areas only during initial acceptance testing.
- B. Sound pressure levels are required to be taken during initial acceptance and reacceptance testing.
- C. Sound pressure levels are required to be taken in hallways only during initial acceptance testing.
- D. Sound pressure levels are required to be taken during initial acceptance and periodic testing.
Answer: B
Explanation:
NFPA 72 requiressound pressure level measurementsto verify that audibility meets code requirements. This must be done duringinitial acceptanceandreacceptance testing(e.g., when system changes occur).
NFPA 72 (2022), Section 18.4.7.2:
"Sound pressure level measurements shall be taken and documented during acceptance and reacceptance testing." Correct answer: B. Sound pressure levels are required to be taken during initial acceptance and reacceptance testing.
NEW QUESTION # 28
The flash rate of visible notification appliances shall be a minimum of how many flashes per second?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
Explanation:
Visible notification appliances (strobes) must flash at aminimum rate of one flash per secondto meet visibility and perceptibility requirements.
NFPA 72 (2022), Section 18.5.3.4.1:
"The flash rate shall be not less than 1 flash per second and not more than 2 flashes per second." Correct answer: A. 1
NEW QUESTION # 29
According to NFPA 72, which date shall be marked on batteries?
- A. Month and year of manufacture
- B. Month and year of expiration
- C. Month and year of installation
- D. Month and year of inspection
Answer: C
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 # 30
Which of the following signals takes highest priority?
- A. Restoral
- B. Pre-alarm
- C. Supervisory
- D. Trouble
Answer: B
Explanation:
Signal priorities determine the order in which events are processed and displayed by the fire alarm system.
NFPA 72 (2022), Annex A.10.14.3 and system programming guidelines:
While not directly listed in a table, systems are programmed such that:
* Alarm (including pre-alarm)has the highest priority
* Followed bysupervisory, thentrouble, and finallyrestoral
Pre-alarm is part ofalarm initiation logicand is treated as high-priority due to its potential escalation.
Correct answer: A. Pre-alarm
NEW QUESTION # 31
How often should a monitored fire alarm system be inspected for trouble signals?
- A. Monthly
- B. Annually
- C. Weekly
- D. Semiannually
Answer: C
Explanation:
NFPA 72 requires thattrouble signalsbe inspectedweeklyon monitored fire alarm systems toensure the system can detect and report problems in a timely manner.
NFPA 72 (2022), Table 14.3.1 - Inspection Frequencies:
"Supervising station systems - Trouble signals"#Weekly
This ensures any open circuits, ground faults, or system issues are discovered promptly.
Correct answer: A. Weekly
NEW QUESTION # 32
Which two of the following are needed to perform a periodic test of a projected beam type smoke detector? (Choose two.)
- A. Introducing smoke
- B. Using a listed test switch
- C. Using an optical filter
- D. Blocking the transmitter
Answer: B,C
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 # 33
At which interval do duct smoke detectors utilized for HVAC shutdown need to be tested?
- A. Monthly
- B. Annually
- C. Quarterly
- D. Semiannually
Answer: B
Explanation:
Duct detectors are used to shut down air handling systems to prevent smoke from circulating. NFPA 72 requires that these detectors and their shutdown functions be testedannually.
NFPA 72 (2022), Table 14.4.3.2 - Testing Frequencies:
"Duct-type smoke detectors with HVAC shutdown" # Frequency: Annually.
The test must verifydetector functionandHVAC control activation.
Correct answer: D. Annually
NEW QUESTION # 34
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. Where a circuit breaker is the disconnecting means, a breaker locking device shall be installed.
- B. The system circuit disconnect shall be permanently identified at the control unit.
- C. Where a circuit breaker is the disconnecting means, a breaker locking device shall be labeled.
- D. The system circuit disconnect shall be permanently identified as "Fire Alarm."
Answer: A,B,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 # 35
Which three of the following are types of fire alarm control units? (Choose three.)
- A. Central station
- B. Dedicated function
- C. Protected premises
- D. Releasing service
Answer: B,C,D
Explanation:
NFPA 72 identifies severaltypes of fire alarm control units (FACUs)based on their function and scope.
NFPA 72 (2022), Section 3.3.103 - Fire Alarm Control Unit (FACU):
* Dedicated Function FACU: Performs a specific fire alarm role (e.g., elevator recall or sprinkler monitoring).
* Protected Premises FACU: Installed on-site to monitor and signal within that building.
* Releasing Service FACU: Activates fire suppression systems like gas or foam.
"Central station" is asupervising station, not a control unit.
Correct answers:
* Dedicated function
* Protected premises
* Releasing service
NEW QUESTION # 36
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. 100 dBA
- B. 110 dBA
- C. 115 dBA
- D. 105 dBA
Answer: D
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 # 37
Where smoke detectors are installed for protection during construction, they shall be cleaned and verified to be within the marked sensitivity range before which event?
- A. Pre-test of system
- B. Walk-through by engineer
- C. Final commissioning
- D. Final cleaning
Answer: C
Explanation:
If smoke detectors are installed during construction, they are likely exposed to dust or debris. NFPA 72 requires that these becleaned and tested for sensitivitybeforefinal commissioningof the system.
NFPA 72 (2022), Section 17.7.1.11:
"Where detectors are used for protection during construction, they shall be cleaned or replaced prior to final system commissioning." This ensures proper performance and prevents false alarms.
Correct answer: B. Final commissioning
NEW QUESTION # 38
What is the interval of a trouble signal test for retransmission to an off-premises location?
- A. Monthly
- B. Annually
- C. Weekly
- D. Semiannually
Answer: B
Explanation:
NFPA 72 requires annual testing to ensuretrouble signalsare correctly transmitted to the off-premises monitoring location (e.g., central station).
NFPA 72 (2022), Table 14.4.3.2 - Testing Frequencies and Methods:
Under "Off-Premises Transmission Equipment,"trouble signalsare testedannually.
This ensures that the system will properly report malfunctions.
Correct answer: D. Annually
NEW QUESTION # 39
In addition to 10% of devices not affected, what else must be tested when site-specific software is changed?
- A. 25% of devices affected
- B. 10% of devices affected
- C. 100% of devices affected
- D. 50% of devices affected
Answer: C
Explanation:
Whensite-specific software(such as logic for fire alarm control panels) is changed,100% of the devices affectedby that change must be tested to confirm correct operation. Also,10% of unaffected devicesmust be tested as a safeguard.
NFPA 72 (2022), Section 14.4.2.2.4:
"When system software is modified, 100% of the affected devices or functions and 10% of the nonaffected devices or functions shall be tested." This ensures that updates don't unintentionally compromise unrelated areas of the system.
Correct answer: D. 100% of devices affected
NEW QUESTION # 40
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 approved by the authority having jurisdiction.
- B. Batteries shall be listed by a nationally recognized testing laboratory.
- C. Batteries shall be marked with the month and year of manufacture.
- D. Batteries shall be the same make and model as those being replaced.
Answer: B,C
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 # 41
How often should radio transmitters be inspected?
- A. Monthly
- B. Annually
- C. Quarterly
- D. Semiannually
Answer: C
Explanation:
Radio transmitters used in fire alarm systems for off-premises signal transmission must be inspected to verify physical condition, connections, and proper operation. The requiredinspection interval is quarterly.
NFPA 72 (2022), Table 14.3.1 - Inspection Frequencies:
"Radio transmitters" # Frequency: Quarterly
Correct answer: B. Quarterly
NEW QUESTION # 42
Which of the following is the inspection frequency of the candela rating of visible appliances?
- A. Initial acceptance and quarterly
- B. Initial acceptance and semiannually
- C. Initial acceptance and no further inspections
- D. Initial acceptance and if a malfunction occurs
Answer: D
Explanation:
Candela ratings arevisually confirmedduringinitial acceptance. Further inspection is requiredonly if a device malfunction occursor areacceptance testis performed.
NFPA 72 (2022), Section 18.5.5.7:
"The candela rating shall be verified at initial acceptance and when there is reason to believe the device is not operating properly."
NEW QUESTION # 43
When shall the elevator alternate level recall function be initiated?
- A. When elevator Phase I recall fails to initiate
- B. In response to activation of a smoke detector located on a floor above designated lobby
- C. With activation of a general building alarm
- D. In response to activation of a smoke detector located at the designated elevator lobby
Answer: D
Explanation:
Elevator alternate level recall is a life safety feature designed to prevent passengers from arriving at a smoke- compromised floor. NFPA 72 and elevator codes dictate that this function must activatewhen smoke is detected at the primary recall level (designated lobby).
NFPA 72 (2022), Section 21.3.3.1:
"When the elevator lobby smoke detector required for the designated recall level is activated, the elevator shall be recalled to an alternate level." This action prevents elevators from opening at a smoke-filled lobby.
Correct answer: A. In response to activation of a smoke detector located at the designated elevator lobby
NEW QUESTION # 44
What is the adjustment range for smoke detectors that have a provision for field adjustment of sensitivity?
- A. No less than 1.2% per foot (3.90% per meter)
- B. No more than 0.6% per foot (1.95% per meter)
- C. No less than 0.6% per foot (1.95% per meter)
- D. No more than 1.2% per foot (3.90% per meter)
Answer: C
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 # 45
When is the elevator recall permitted to send a supervisory signal in lieu of an alarm signal?
- A. Where approved by the insurance company
- B. Where approved by the system designer
- C. Where approved by the building owner
- D. Where approved by the authority having jurisdiction
Answer: D
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 # 46
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: D
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 # 47
After the secondary power supply has operated the fire alarm system under quiescent load,the secondary power shall be capable of operating all alarm notification appliances for which length of time?
- A. 5 minutes
- B. 24 hours
- C. 10 minutes
- D. 1 hour
Answer: C
Explanation:
Secondary power supplies must meet minimum performance durations to ensure alarm operation when primary power fails. According to NFPA 72, the system must be able to:
NFPA 72 (2022), Section 10.6.7.2.1.1:
"The secondary power supply shall have sufficient capacity to operate the system under quiescent load for a minimum of 24 hours, followed by 5 minutes of alarm (for emergency voice/alarm communication systems, 15 minutes of alarm), unless otherwise permitted by 10.6.7.2.1.2." However, thedefault minimumfor most systems (non-voice) is:
* 24 hours in normal (quiescent) mode
* Followed by 5 minutes of full alarm operation
Correct answer: A. 5 minutes
NEW QUESTION # 48
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