Which component automatically regulates cabin pressure by venting air during depressurization?

Which component automatically regulates cabin pressure by venting air during depressurization?

• A. Automatic outflow valve
• B. Pack
• C. Oleo strut
• D. Flap

Answer: (A)

Automatic outflow valve. This valve is part of the cabin pressurization system and is controlled by the cabin pressure controller. It opens to vent air from the cabin to the outside, allowing the system to maintain the target cabin pressure and differential. During depressurization, the valve opens further to relieve the cabin and equalize with the outside pressure. The packs provide conditioned air but do not regulate pressure, and oleo struts and flaps serve unrelated functions.

Automatic outflow valve. This valve is part of the cabin pressurization system and is controlled by the cabin pressure controller. It opens to vent air from the cabin to the outside, allowing the system to maintain the target cabin pressure and differential. During depressurization, the valve opens further to relieve the cabin and equalize with the outside pressure. The packs provide conditioned air but do not regulate pressure, and oleo struts and flaps serve unrelated functions.