Free Access NICET ITFAS-Level-1 New Release

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

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NFPA 72 outlines theretention period for recordsof inspections and testing in Section14.6.3.1. These records are important for verification during audits or when reviewing system maintenance history.

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."

This means records must be keptuntil the next test happensand for1 year after that, not just a fixed calendar period.

Correct answer: D. Until the next test and 1 year

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Asupervisory signalindicates a condition thatrequires attention but is not an alarm. In sprinkler systems, one of the most common supervisory signals comes from avalve tamper switch, indicating a partially closed valve, or sometimes awaterflow switch resetissue.

NFPA 72 (2022), Section 3.3.269:

"Supervisory Signal — A signal indicating the need for action in connection with the supervision of guard tours, the fire suppression systems, or equipment or maintenance features of related systems."

Also:Table A.10.14.2.1

Shows thatwaterflow valves and tamper switchesare typical sources of supervisory signals.

So the correct answer — awaterflow alarmimplies something abnormal with the fire protection system, possibly indicating a tamper switch or system supervisory issue.

Correct answer: D. A waterflow alarm has been activated

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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