Which system distributes oxygen to the crew station?

• A. Air Cycle Air Conditioning System
• B. Anti-G System
• C. Fire Extinguishing System
• D. On-board Oxygen Generation System distributes oxygen to the crew station

Answer: (D)

Oxygen distribution to the crew is handled by the On-board Oxygen Generation System. This system generates breathable oxygen and feeds it through the aircraft’s oxygen distribution lines to the crew’s masks, providing the necessary O2 levels at altitude and during flight demands. The Air Cycle Air Conditioning System handles conditioning and pressurization of cockpit air but does not create or deliver the breathable oxygen. The Anti-G System supports crew safety under high G by managing G-force effects, not by supplying oxygen. The Fire Extinguishing System is focused on suppressing fires and has no role in oxygen distribution.