How long are current alarm status and analysis indicated on the operator's keypad?

• A. 10 days
• B. 5 days
• C. 30 days
• D. 60 days

Answer: (A)

This question is about how long the keypad keeps the display of current alarm status and its analysis. The system shows these items for ten days. That means operators can review recent alarms and the corresponding analysis directly from the keypad during the past ten days. This window provides quick access to relevant events without clutter, while older information can be retrieved from logs if needed. A shorter span, like five days, could miss events near cycle boundaries, and longer spans, such as thirty or sixty days, would clutter the display and aren’t necessary for everyday monitoring. So, ten days is the intended retention period.