Shower steam keeps setting off the detectors outside the bathrooms. Maintenance staff want to cover those detectors with plastic during busy shower hours. What should the coordinator do?

Ban the covers and have an authorized vendor look at moving the devices to spots that the code allows

Authorize the temporary covers provided they are immediately removed after the shower hours conclude

Approve the use of the covers only if a trained fire guard is stationed nearby during shower hours

Disconnect the specific detector zones at the main panel during the scheduled daily peak shower hours

Contractors are performing heavy sanding in a shelter hallway, creating significant dust near active smoke detectors. What is the correct procedure to prevent false alarms without compromising overall safety?

Start an impairment for the affected zone, notify as required, and conduct a fire watch.

Tape over the detector sensing chambers temporarily until the sanding is finished.

Cover the active detectors tightly with plastic bags during the construction work.

Relocate the smoke detectors to a dust-free area temporarily during the project.

A coordinator discovers that shelter staff have placed plastic bags over smoke detectors to prevent nuisance alarms during meal preparations. What must the coordinator do FIRST?

Remove the covers right away, then address the root cause of the cooking alarms

Document the staff intervention as a temporary safety measure

Disable the zone at the control panel to prevent further false alarms

Start a fire watch while the bags remain on the devices during cooking

Residents frequently trigger false alarms by using heavy aerosols near their room detectors. How should the coordinator handle this repeated issue?

Log each activation and implement corrective resident policies and education

Classify the alarms as supervisory signals to prevent FDNY dispatch

Lower the sensitivity settings on the fire alarm control panel manually

Disconnect the individual room detectors during standard grooming hours

An alarm goes off because a smoke detector was installed in the wrong spot. How does the Study Material classify this alarm?

An unwarranted alarm, since the system failed to work as designed

An unnecessary alarm, since the system worked as designed

A supervisory signal, since a monitored device is not normal

A trouble signal, since a monitored circuit has a fault

Concept · Zone E · Alarm panel

Unnecessary or unwarranted: two kinds of false alarm, two different fixes

The FDNY Study Material splits what people call a false alarm into two kinds. An unnecessary alarm comes from a system that worked as designed, but the FDNY response proved unnecessary. An unwarranted alarm comes from a system that failed to work as designed. Both terms come from the glossary in section 2, which the key terms page walks through.

Plan ref E3Updated October 25, 2026

The words behind a false alarm

Unnecessary alarm: The fire alarm system functioned as designed, but the department response proved unnecessary (Source: Study Material §2).
Unwarranted alarm: The system failed to function as designed, because of improper installation, improper maintenance, malfunction or another factor (Source: Study Material §2).
False alarm: The everyday word. The Study Material uses it in a note about smoke detectors, but it defines only the two terms above.
Off-line: A period when the central station, at the owner’s request, does not send the building’s alarm signals to the FDNY. Allowed only for purposes the Fire Department approves, linked to preventing unnecessary and unwarranted alarms (Source: Study Material §2).

Sorting the examples

Each row checked against the Study Material

What happened	Did the system work as designed?	Kind
A drill starts, nobody calls the central station first, and the FDNY responds	Yes. The alarm was set off on purpose and was sent as designed	Unnecessary
A detector’s setting does not suit the room it is installed in	No. The setting is wrong for the location	Unwarranted
A detector that was never cleaned sends an alarm with no smoke present	No. The system lacked maintenance	Unwarranted
The control panel malfunctions and sends an alarm	No. A part of the system failed	Unwarranted

Row 1 follows step 1 of the drill procedure, which takes the system off-line “to avoid an unnecessary alarm” (Source: Study Material §7.1). Rows 2 to 4 are examples the Study Material itself gives (Source: Study Material §2).

Sort it, then fix the cause

Checkpoint round

0 of 6 checked · 0 cleared

Practice questions written for study, not taken from the test. The real F-80 is a multiple-choice test on a touch-screen computer at FDNY Headquarters.

Read the options before the stem. Two of them often stop the alarms by stopping the detector. Strike those first, then compare what is left.

How the checkpoint round works

Read the options first and rule out the ones that break a rule, then pick from what is left. After you answer, the debrief explains every option and scores your strikes. Keys: 1–5 or A–E answer, Shift with a number rules that option out, the arrow keys move.

Checkpoint 1 of 6

Checkpoint 01
Shower steam keeps setting off the detectors outside the bathrooms. Maintenance staff want to cover those detectors with plastic during busy shower hours. What should the coordinator do?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. ACovered detectors cannot sense smoke, and doing it on a daily schedule makes the impairment routine.
2. BA fire guard nearby does not make a covered detector work; covering it still takes the device out of service.
3. CCorrect: Steam is a placement problem, so keep the detectors working and have the alarm company evaluate moving them; coordinators may not modify the system.
4. DDisconnecting zones every day disables protection on purpose; poor placement is fixed at the device, not at the panel.
Checkpoint 02
Contractors are performing heavy sanding in a shelter hallway, creating significant dust near active smoke detectors. What is the correct procedure to prevent false alarms without compromising overall safety?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. ATaped detectors cannot sense smoke, and doing it quietly leaves the hallway unprotected with no one aware.
2. BBagging a detector is the same as disabling it; without the out-of-service steps, nobody is covering that area.
3. CCorrect: Dust can set off detectors, so if they must be protected the zone is handled as out of service, with notifications and a fire watch.
4. DMoving detectors is installation work coordinators may not do, and a temporary move leaves the hallway without detection.
Checkpoint 03
A coordinator discovers that shelter staff have placed plastic bags over smoke detectors to prevent nuisance alarms during meal preparations. What must the coordinator do FIRST?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. ACorrect: Bagged detectors are out of service, so restore them right away, then deal with what is causing the cooking alarms.
2. BWriting it down as a safety measure treats a disabled detector as acceptable; the bags have to come off first.
3. CDisabling the zone removes protection on purpose, and it is a system change a coordinator may not make.
4. DA fire watch covers a system that is out of service for a valid reason; it is not a license to keep detectors covered.
Checkpoint 04
Residents frequently trigger false alarms by using heavy aerosols near their room detectors. How should the coordinator handle this repeated issue?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. ACorrect: These are unnecessary alarms caused by resident behavior, so record each one and change the behavior through house rules and education.
2. BSignal type is set by the device, not by staff; relabeling alarms to avoid an FDNY response is not possible and would be misconduct.
3. CChanging detector sensitivity is modifying the system, which coordinators are prohibited from doing.
4. DDisconnecting room detectors leaves sleeping areas unprotected exactly when people are in them.
Checkpoint 05
An alarm goes off because a smoke detector was installed in the wrong spot. How does the Study Material classify this alarm?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. AOut: unnecessary means the system worked as designed, like cigarette smoke in a non-smoking area.
2. BA supervisory signal means a monitored device is compromised; this event sent an alarm signal.
3. CA trouble signal reports a fault such as a low battery; it is not an alarm at all.
4. DCorrect: bad detector placement means the system did not work as designed, which makes the alarm unwarranted.
Checkpoint 06
A resident smokes a cigarette in a non-smoking room. A smoke detector sends an alarm and the FDNY responds, but there is no fire. What kind of alarm is this?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
1. AUnwarranted means the system failed to work as designed, such as a detector in the wrong spot; here it worked.
2. BA supervisory signal means a monitored device is off-normal, such as a closed valve, not smoke at a detector.
3. CCorrect: The system worked as designed and sensed real smoke, but no response was needed; the Study Material uses this very example.
4. DA trouble signal reports a fault in a circuit or part, such as a low battery; a detector sensing smoke sends an alarm.

Protect the detector, never blind it

Care must be taken at all times to protect smoke detectors from airborne particles. The Study Material names sheetrock dust, dust from cutting wood, and floor sanding (Source: Study Material §10.1). That protection is planned around the work. A detector that cannot sense smoke leaves its area unprotected, and a system that is not fully functional counts as out of service (Source: Study Material §2).

Why the label matters after the alarm

The kind of alarm points to the fix. An unnecessary alarm is fixed by changing what people did, such as the drill call that was skipped. An unwarranted alarm is fixed in the system: a setting, a cleaning, a repair.

The second kind is not the coordinator’s to fix by hand. The coordinator may not install or modify fire alarm components. Only S-97 or S-98 holders service and test the system, and they clean smoke detectors every six months. The smoke and heat detectors page covers who does what to each device.

Both kinds have a cost for the building. If a drill runs without taking the system off-line and the FDNY responds, the building owner is subject to violations and possible fines (Source: Study Material §7.1).

An alarm also shows up as one of three signals at the panel. The fire alarm control panel page explains the signals and the controls.

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