NICET Updated ITFAS-Level-1 Exam Questions and Answers by joe

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

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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

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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

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

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