What feature is used to minimize the impact of intermittent faults on operator activity during higher alert states?

What feature is used to minimize the impact of intermittent faults on operator activity during higher alert states?

• A. To increase the rate of fault alerts
• B. To filter out non-critical fault alerts during high alert
• C. To log all faults to a file
• D. To disable all fault alerts

Answer: (B)

When alert levels are high, the system uses a fault alert filtering mechanism to reduce interruptions from intermittent faults. Intermittent faults can flicker in and out, creating noise that distracts operators when they’re already under pressure. Filtering non‑critical alerts keeps only the warnings that truly require immediate attention, preserving situation awareness and quick, accurate responses. This approach often relies on criteria like severity, duration, and how often the fault recurs, sometimes with debounce logic so a transient blip doesn’t trigger an alert. You can still collect data on all faults for later analysis or review, but the live alerts shown to the operator are selectively suppressed during high-alert periods. Increasing the alert rate would worsen noise, logging everything without suppressing alerts doesn’t reduce disruption, and turning alerts off entirely would hide important problems.

When alert levels are high, the system uses a fault alert filtering mechanism to reduce interruptions from intermittent faults. Intermittent faults can flicker in and out, creating noise that distracts operators when they’re already under pressure. Filtering non‑critical alerts keeps only the warnings that truly require immediate attention, preserving situation awareness and quick, accurate responses. This approach often relies on criteria like severity, duration, and how often the fault recurs, sometimes with debounce logic so a transient blip doesn’t trigger an alert. You can still collect data on all faults for later analysis or review, but the live alerts shown to the operator are selectively suppressed during high-alert periods. Increasing the alert rate would worsen noise, logging everything without suppressing alerts doesn’t reduce disruption, and turning alerts off entirely would hide important problems.