Which term denotes a wall that divides the cabin interior wholly or partially?

• A. Bulkhead
• B. Bank
• C. Configuration
• D. Connection

Answer: (A)

The wall that divides sections inside the cabin is called a bulkhead. In aircraft interiors, a bulkhead acts as a boundary between areas, and it can extend from floor to ceiling or only part way up, creating a separate space such as a crew rest, galley, lavatory, or a different cabin zone. It also provides structural support and helps define pressurized boundaries within the fuselage. The other terms don’t describe interior walls: a bank isn’t used to name a wall, configuration refers to the overall layout of the cabin, and connection isn’t used for this purpose.