Which of the following occur during a decompression?

• A. Oxygen masks drop, fasten seatbelts, the PRAM plays
• B. Masks drop but seatbelts remain unfastened
• C. Oxygen masks drop but no PA is announced
• D. All passengers remain seated without action

Answer: (A)

During a decompression, immediate protective actions are taken to restore breathable air and keep passengers safe. Oxygen masks automatically deploy from the panels above each passenger, and the seatbelt sign comes on to keep everyone securely seated. The crew uses the cabin public address system (PRAM/PA) to inform and instruct passengers about the situation and the steps to take. Therefore, the choice that describes masks dropping, passengers fastening their seatbelts, and the PRAM playing captures the full sequence of actions you’d expect in this event. The other options miss one or more essential elements: omitting the belt fastening, omitting the announcement, or implying no action at all, which would not align with proper decompression procedures.