Where is the outflow valve located?

• A. Right aft side of the flight station
• B. Left front side of the flight station
• C. Aft bulkhead
• D. Forward fuselage

Answer: (A)

The outflow valve is part of the cabin pressurization system and its role is to vent conditioned air from the cabin to the outside to control cabin altitude. Its typical placement—on the right aft side of the flight station—fits practical needs: it sits close to the cockpit where the environmental control system is managed, allowing direct, straightforward routing of ducts and easier access for the crew and maintenance. This location also helps keep the vent path clear of critical controls and equipment while minimizing noise and heat in the cockpit area.

Choosing a location on the left front side, the aft bulkhead, or the forward fuselage would complicate ducting, could expose cockpit systems to vent flow or noise, and generally disrupt ease of access and maintenance.