When an alarm annunciates, what will the operator's first action be?

• A. Silence the alarm
• B. Defers the alarm
• C. Tag the facility
• D. Acknowledge using F1

Answer: (D)

When an alarm annunciates, the first action is to acknowledge it using F1 on the operator console. Acknowledging signals that you’ve seen the alarm and are starting to handle it, which typically logs the event, records your response, and allows you to proceed with the necessary diagnostics or actions. Silencing only stops the audible sound and doesn’t confirm awareness or start the incident handling. Deferring would delay response, and tagging the facility is for documentation or labeling rather than the immediate response. So acknowledging with F1 is the proper initial step.