PSU stands for which item?

PSU stands for which item?

• A. Power Supply Unit
• B. Passenger Safety Unit
• C. Planned Service Unit
• D. Passenger Service Unit

Answer: (D)

PSU here means the Passenger Service Unit, the overhead panel above each row of seats in an aircraft cabin. It houses passenger-focused features like air vents, reading lights, the call button, and the oxygen mask housing. These are the elements travelers interact with directly, which is why this term is the correct choice. The other options refer to terms used in different contexts (for example, a Power Supply Unit is an electrical component for powering equipment) and don’t correspond to the cabin feature described by PSU in aviation terminology.

PSU here means the Passenger Service Unit, the overhead panel above each row of seats in an aircraft cabin. It houses passenger-focused features like air vents, reading lights, the call button, and the oxygen mask housing. These are the elements travelers interact with directly, which is why this term is the correct choice. The other options refer to terms used in different contexts (for example, a Power Supply Unit is an electrical component for powering equipment) and don’t correspond to the cabin feature described by PSU in aviation terminology.