NICET ITFAS-Level-1 Exam With Confidence Using Practice Dumps

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

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

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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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