Concept · Zone E · Alarm panel
Acknowledge, silence, reset: three buttons with three different rules
Acknowledge, alarm silence and reset are three separate controls on the fire alarm control panel, and each has its own condition. Acknowledge (ACK) quiets the panel. Alarm silence quiets the building. Reset returns the system to normal. Two of the three wait for the FDNY, and the timeline further down shows when.
Plan ref E2Updated October 25, 2026
Three controls, side by side
What each control acts on, from the Study Material (rev. January 2026)
| Point | Acknowledge (ACK) | Alarm silence | Reset |
|---|---|---|---|
| What it acts on (differs) | The panel: it acknowledges a signal and silences the panel | The building: the horns and other notification appliances; on some systems the strobes keep flashing | The whole system: it returns the devices to normal after the alarm condition is cleared |
| Signals it applies to (differs) | Alarm, supervisory and trouble | Alarm: the building’s audible and visual devices | Alarm and supervisory conditions |
| What it leaves alone (differs) | The condition itself, which still has to be investigated | The alarm condition, which stays until reset | Most trouble conditions, which clear on their own once fixed |
Shaded rows marked ≠ are the points where at least one column differs from the others.
From Source: Study Material §10.1 and the panel tasks in Source: Study Material §4.
Two options that both quiet the alarm
In our rounds, two quiet-sounding options often sit side by side. Read both before the stem and say what each one quiets: the panel, or the whole building. That one word usually separates them.
Round: who presses what, and when
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 on these. The wrong ones usually press a button one step too early. Signals themselves are sorted on the alarm, supervisory and trouble page.
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
A resident maliciously activates a manual pull station. Shelter staff immediately verify there is no fire. What is the REQUIRED sequence before allowing evacuated occupants to re-enter?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- ACorrect: Staff can confirm there is no fire, but the FDNY verifies the condition and directs the reset, so re-entry waits for the responding officer.
- BCanceling the FDNY response is the trap. No one may act to prevent or delay the reporting of an emergency, even one that looks malicious.
- CThe panel is reset only when the FDNY instructs it, and calling it a false alarm before FDNY checks the building is premature.
- DLetting residents back in before the FDNY arrives puts staff judgment in place of the department’s clearance.
Checkpoint 02
While reviewing the log book, you read: “03:00 - Trouble signal on 4th floor. 03:02 - Reset panel. 03:15 - Investigated floor, no issues.” Which required procedure was broken?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- AThe delay is not the core error; the panel was reset at 03:02, before anyone looked at the floor, and the entry never mentions silencing.
- BTelling the central station about a system condition is good practice, not a violation.
- CCorrect: The entry shows a reset two minutes after the signal and the investigation thirteen minutes later; the cause has to be found first.
- DA trouble signal reports a fault, not a fire, so it does not trigger any evacuation.
Checkpoint 03
A fire alarm is sounding. Staff see no smoke and urge the coordinator to reset the FACP to stop it. What is the FIRST required action?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- AA headcount follows an evacuation; it does not tell you what tripped the alarm or whether there is fire.
- BNever reset the panel until the FDNY has verified the condition; staff not seeing smoke is not verification.
- CCorrect: Treat the alarm as real and check the zone the panel shows; the panel stays as it is until the FDNY verifies the cause.
- DSilencing the building tones needs FDNY authorization and comes after evacuation, so it cannot be your first move.
Checkpoint 04
Following a minor emergency, the responding FDNY Engine Company provides specific verbal instructions regarding the resetting of a pull station. How must this interaction be handled?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- AFollowing the responding officer’s directions is expected; there is nothing to grieve, and arguing wastes time.
- BSpoken handoffs get lost between shifts; FDNY directions need a written record the next coordinator can read.
- CAn arrival time alone loses the instructions themselves, which are the part that matters for the next reset.
- DCorrect: Pull stations are reset only as the FDNY directs, so write the instructions where the next shift and any inspector can find them.
Checkpoint 05
During an active fire alarm, the building manager instructs the coordinator to silence the alarm to avoid panicking residents. What is the MOST appropriate action for the coordinator?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- AThere is no advisory delay here; an unplanned alarm is treated as a real fire, and the evacuation goes ahead.
- BFDNY authorization is needed to silence, but silencing comes after evacuation is complete; asking now to calm residents puts quiet ahead of getting people out.
- CCorrect: An unplanned alarm is treated as a real fire, so evacuate per the plan; silencing waits until evacuation is complete and the FDNY authorizes it.
- DSilencing without FDNY authorization is not allowed, and the tones are part of what moves people out.
Checkpoint 06
Once the alarm silence switch at the panel has been used, what happens to the alarm signal sent to the central station?
Rule out what you can with the ✕ buttons, then choose. The debrief for every option opens here.
- ASilencing calls nobody off; the alarm has already gone out and the FDNY response goes ahead.
- BCorrect: The silence switch quiets the building’s horns, and sometimes the strobes, but it does not prevent the signal from going to the central station company; silencing itself waits until evacuation is complete and the FDNY authorizes it.
- CNothing is held back; the panel sends the signal when the alarm starts, before any silence or reset.
- DSilencing does not change the type of signal; it only quiets the notification devices in the building.
One alarm, from first signal to reset
- 2:10 AM
A heat detector activates in the laundry room
The panel shows an alarm. The coordinator reports to the panel and presses ACK, so the panel stops sounding while the plan runs.
- 2:11 AM
The plan runs
Horns and strobes keep going while staff move residents as the emergency preparedness plan sets out.
- 2:25 AM
Evacuation complete
The laundry room is being checked. Silence may be used only now, and only once the FDNY authorizes it.
- FDNY on scene
Brief and follow
The coordinator tells the responders what happened and what the building has done so far, then follows their directions.
- After verification
Reset at the panel
Reset only after FDNY personnel verify the condition. If a device still senses smoke or heat, the panel goes back into alarm.
- After reset
Restart the fans
Fans shut down by the alarm usually need their own Fan Restart switch, often at the panel.
ACK, silence and reset in short
Does pressing ACK fix the problem?
No. ACK tells the panel the signal has been seen and quiets the panel. The condition is still there until someone investigates and corrects it (Source: Study Material §10.1).
Why do strobes sometimes keep flashing after alarm silence?
It depends on how the system is configured. Silence either stops all notification appliances, or only the audible ones, with the strobes still flashing (Source: Study Material §10.1).
A pull station started the alarm. Is the reset different?
Yes. A pulled station needs attention at the station and at the panel, and a key may be needed. The manual pull stations page covers it.
When may the panel be reset?
After the alarm condition is cleared, and never before FDNY personnel verify the condition (Source: Study Material §10.1).
Keep the buttons in order
The practice rounds on this site mix panel controls with the rest of the Study Material, so the order of ACK, silence and reset comes up again in new situations.