When are the outflow valves typically adjusted?

The adjustment of the outflow valves is primarily related to pressurization control within the aircraft. These valves play a crucial role in managing the cabin pressure by allowing air to escape from the pressurized cabin to maintain the desired pressure level as the aircraft changes altitude. When the aircraft climbs, descends, or levels off, the pressurization system continuously monitors and adjusts the outflow valves to ensure safe and comfortable conditions for the passengers and crew.

Furthermore, pressurization control involves the outflow valves being active throughout various phases of flight, not limited to just climb, landing, or setting landing elevation, which are conditions that do occur but are not the sole instances when the valves are adjusted. Hence, the correct understanding of outflow valves adjustment being tied to overall pressurization control emphasizes the continuous nature of their operation for maintaining proper cabin conditions.