What is the recommended action if detector alarms during non-work hours?

• A. Reset the detector and continue
• B. Notify security only
• C. Evacuate immediately without verification
• D. Respond per alarm procedure, verify status, evacuate if necessary, and contact supervisor

Answer: (D)

When a detector alarms, treat it as a potential hazard and follow the established alarm procedure. The best action is to respond according to the procedure, verify the status of the alarm to determine if it’s a real release or a nuisance, evacuate if the situation requires it, and contact your supervisor. This approach ensures safety by confirming whether people need to evacuate, coordinating a proper response, and getting the right oversight and escalation.

Resetting the detector and continuing can miss a real hazard, and notifying security alone doesn’t ensure appropriate protective actions are taken. Evacuating without verification can cause unnecessary disruption if the alarm is false. Following the documented procedure with verification and supervisor contact provides a safe, consistent response, especially when fewer staff may be present during non-work hours.