Which item is described as a portable container for oxygen under pressure used in emergencies?

Which item is described as a portable container for oxygen under pressure used in emergencies?

• A. A container with oxygen under pressure used in emergencies
• B. A water evacuation slide
• C. A door on the side of the aircraft used for service
• D. A device used to steer aircraft during taxi

Answer: (A)

The concept being tested is recognizing a portable oxygen source used for individual emergencies. A portable oxygen bottle is a lightweight cylinder that contains oxygen under pressure and is designed for quick, hand-held use by crew or passengers in medical or emergency situations. It includes a regulator to control the flow and typically a mask or cannula to deliver the oxygen. This is different from equipment like a water evacuation slide, a service door, or a steering device for taxiing, which serve unrelated safety or operational roles. In an emergency, having portable oxygen allows immediate relief for someone who needs oxygen, even if the fixed, aircraft-wide oxygen system isn’t being used or isn’t sufficient.

The concept being tested is recognizing a portable oxygen source used for individual emergencies. A portable oxygen bottle is a lightweight cylinder that contains oxygen under pressure and is designed for quick, hand-held use by crew or passengers in medical or emergency situations. It includes a regulator to control the flow and typically a mask or cannula to deliver the oxygen. This is different from equipment like a water evacuation slide, a service door, or a steering device for taxiing, which serve unrelated safety or operational roles. In an emergency, having portable oxygen allows immediate relief for someone who needs oxygen, even if the fixed, aircraft-wide oxygen system isn’t being used or isn’t sufficient.