Which system provides warnings and cautions for the crew in the cockpit?

• A. Engine/electrical switch panel
• B. Trim control panel
• C. Crew alerting system (CAS)
• D. Environmental control panel

Answer: (C)

The system that provides warnings and cautions for the crew in the cockpit is the Crew Alerting System. It is designed to surface abnormal conditions with prioritized alerts, shown on the flight deck displays and often accompanied by audible cues, so the crew can quickly identify and respond to issues that need attention. This system consolidates warnings and cautions from various aircraft subsystems, guiding the pilot through appropriate actions in a structured way.

The other panels serve to control or adjust systems rather than alert the crew. The engine/electrical switch panel is for turning engines and electrical systems on or off, not for presenting warnings. The trim control panel adjusts the aircraft’s trim to maintain stable flight. The environmental control panel manages cabin environment factors like air conditioning and pressurization. None of these primarily function as an alerting system, which is why the Crew Alerting System is the best answer.