Which audio warning cannot be suppressed by the RESET switch on the cyclic?

• A. Low Rotor RPM
• B. Rotor Overspeed
• C. Tail Rotor Jam
• D. Engine Fire

Answer: (B)

The thing being tested is how certain cockpit warnings are designed to demand immediate attention and cannot be silenced at will. The rotor overspeed warning is built to be non-suppressible by the RESET switch because it indicates a continuing, life‑threatening condition—the rotor RPM is above safe limits and could lead to structural damage or loss of control. The alert is latched so the pilot cannot ignore it; actions must be taken to bring rotor speed back into the safe range, and only then will the warning stop. In contrast, the other warnings are structured so that once the condition is acknowledged and addressed (and, if needed, the system resets after corrective action), their audible alert can be silenced.