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NICET Inspection and Testing of Fire Alarm Systems Level I Exam Sample Questions (Q65-Q70):
NEW QUESTION # 65
When is a shunt trip operated to power down an elevator?
- A. When a smoke detector is tripped
- B. When a sprinkler head is activated
- C. When a pull station is activated
- D. When a heat detector is tripped
Answer: B
Explanation:
Elevators must beshut downwhen there iswater dischargein the hoistway to prevent electrical hazards and damage. This shutdown is done using ashunt trip breaker.
NFPA 72 (2022), Section 21.4.2:
"Where sprinklers are located in the elevator machine room, control space, or hoistway, means shall be provided to automatically disconnect the main power supply to the elevator prior to the application of water." This is triggeredby a waterflow switch or heat detector, but the standard design uses thesprinkler head activationas the point of shutdown via heat detector.
Important: While the heat detector usually triggers the shunt trip, thesprinkler head activationis the condition being detected.
Correct answer: D. When a sprinkler head is activated
NEW QUESTION # 66
Notification appliances in a fire alarm system produce a distinctive evacuation signal that does which of the following?
- A. Provides a 3-pulse temporal pattern
- B. Alternates on for 1 second, off for 1.5 seconds
- C. Alternates on for 1 second, off for 1 second
- D. Provides a 4-pulse temporal pattern
Answer: A
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 # 67
How should the documentation cabinet be labeled?
- A. Fire alarm record documents
- B. System records
- C. System record documents
- D. Fire alarm documents
Answer: C
Explanation:
NFPA 72 mandates that fire alarm system documentation be stored in a dedicated cabinet, and that cabinet must be clearly labeled. Theexact phraserequired is:
NFPA 72 (2022), Section 7.7.2:
"The cabinet shall be prominently labeled 'SYSTEM RECORD DOCUMENTS.'"
This ensures that anyone - including inspectors, AHJs, or technicians - can easily identify where critical system information is stored.
Correct answer: D. System record documents
NEW QUESTION # 68
Which of the following signals takes highest priority?
- A. Trouble
- B. Restoral
- C. Pre-alarm
- D. Supervisory
Answer: C
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 # 69
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. 110 dBA
- B. 115 dBA
- C. 100 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 # 70
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