Why are false alarms investigated?

• A. Increase response
• B. Determine the cause of the alarm
• C. Install new detectors
• D. Review alarm frequencies

Answer: (B)

When a false alarm occurs, the goal of investigating it is to identify what triggered the alarm and why, so you can correct the underlying issue and prevent it from happening again. This keeps the fire alarm system reliable and ensures that when an alarm does sound, it reflects a real risk rather than a nuisance.

In practice, the investigation helps reveal causes like dust or steam affecting detectors, maintenance faults, or user error, and then guides actions such as cleaning or repairing equipment, adjusting sensitivity, or changing procedures. The other options aren’t the primary aim of the investigation: increasing response is a downstream outcome of having a credible, trusted alarm; installing new detectors is a separate preventive step, not the investigation’s purpose; and reviewing alarm frequencies is part of ongoing monitoring, not the immediate reason to investigate a specific false alarm.