What type of alerts does the CRJ stall warning system provide?

The CRJ stall warning system is designed to provide both auditory and visual alerts to inform the pilots of a potential stall condition. When the aircraft approaches stall margins, the system activates a combination of noise alerts—a distinct auditory warning—and visual indicators that illuminate on the flight displays. This multi-faceted approach ensures that the pilots are aware of the increasing risk of stall well before it occurs, enabling them to take corrective action.

This capability is essential for safety, as it gives pilots timely feedback about the aircraft's performance and allows for appropriate adjustments to maintain safe flight. The noise alerts serve as an immediate attention grabber, while the visual cues provide further data about the aircraft's attitude and performance relative to stall limitations.

The other choices do not accurately reflect the capabilities of the CRJ stall warning system. For example, visual cues only or textual warnings without accompanying sound would not provide the same level of alertness needed in critical situations. Additionally, a lack of alerts until reaching stall conditions would compromise safety by not giving pilots the essential early warnings required to avoid a stall altogether.