Building Technology And Utilities Practice Test

What device detects smoke and sounds an alarm?

Smoke Detector Heat Detector Fire Alarm Control Panel Manual Pull Station

Correct Answer:

Smoke Detector

Explanation:

Detecting smoke and triggering the alarm is the job of a smoke detector. It senses smoke particles in the air—typically using ionization or photoelectric methods—and, when smoke is detected, activates its audible alarm. This is different from a heat detector, which responds to high heat rather than smoke; a fire alarm control panel, which is the central system that processes inputs and controls alarms, doesn’t detect smoke by itself; and a manual pull station, which requires a person to trigger the alarm. So the device that both detects smoke and sounds the alarm is the smoke detector.

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