Which maneuver is generally advised when experiencing a stall?

In the event of an aircraft stall, reducing the angle of attack by pitching down is a critical maneuver. When an aircraft stalls, it means that the wings have exceeded their critical angle of attack, resulting in a significant loss of lift. By pitching the nose of the aircraft down, the pilot effectively decreases the angle of attack and allows the wings to regain their lift characteristics. This maneuver helps to recover from the stall and is essential for returning the aircraft to normal flight.

Maintaining altitude, increasing throttle, or performing steep turns do not address the root issue of the stall. Simply adding power does not resolve the stall condition and can lead to a more severe situation if the angle of attack remains excessive. Similarly, maintaining altitude may prevent recovery by keeping the aircraft in a stall, and steep turns can exacerbate the situation by increasing the load factor, which can contribute to loss of control. Thus, reducing the angle of attack is the most effective and advised action to recover from a stall.