The part of a fire alarm system which causes the system to indicate an alarm is:

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Multiple Choice

The part of a fire alarm system which causes the system to indicate an alarm is:

Explanation:
Activation is triggered by the initiation device. This is the part that detects a fire condition or is operated manually and sends a signal to the fire alarm control panel to start the alarm. Once that signal is received, the system energizes the notification devices—such as horns and strobes—to alert occupants. The annunciation device, on the other hand, displays the alarm status and location at the panel, but it does not start the alarm itself. The suppression device relates to extinguishing actions (like sprinklers) and is not involved in signaling the alarm. So, the component that causes the system to indicate an alarm is the initiation device.

Activation is triggered by the initiation device. This is the part that detects a fire condition or is operated manually and sends a signal to the fire alarm control panel to start the alarm. Once that signal is received, the system energizes the notification devices—such as horns and strobes—to alert occupants. The annunciation device, on the other hand, displays the alarm status and location at the panel, but it does not start the alarm itself. The suppression device relates to extinguishing actions (like sprinklers) and is not involved in signaling the alarm. So, the component that causes the system to indicate an alarm is the initiation device.

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