Which door shows up red when open?

Which door shows up red when open?

• A. Passenger door
• B. Crew door
• C. Cargo door
• D. Service door

Answer: (A)

Red is used to indicate an emergency exit. The passenger door is the primary evacuation path on most aircraft, so its interior and the area around the handle are designed to be highly visible in red when opened. This immediate visual cue helps passengers locate the exit quickly during an evacuation, which is why the door that shows up red when open is the passenger door. Other doors—crew, cargo, and service—aren’t treated as the main evacuation exits, so they don’t rely on the same red visibility cue.

Red is used to indicate an emergency exit. The passenger door is the primary evacuation path on most aircraft, so its interior and the area around the handle are designed to be highly visible in red when opened. This immediate visual cue helps passengers locate the exit quickly during an evacuation, which is why the door that shows up red when open is the passenger door. Other doors—crew, cargo, and service—aren’t treated as the main evacuation exits, so they don’t rely on the same red visibility cue.