What are the three types of oxygen listed?

What are the three types of oxygen listed?

• A. 02 Walkaround Bottles, Solid State Oxygen, 66N Supplemental Oxygen
• B. Oxygen Tanks, Portable Oxygen, Liquid Oxygen
• C. Oxygen Masks, Oxygen Concentrators, Emergency Oxygen
• D. Heliox, Nitrogen, Ozone

Answer: (A)

Oxygen on an aircraft comes in three main forms: portable O2 sources you can carry around, solid-state oxygen generators that produce oxygen on demand, and specific onboard supplemental oxygen systems used to provide extra oxygen in emergencies or medical situations. The trio listed fits those categories precisely: O2 Walkaround Bottles are the portable cylinders, Solid State Oxygen refers to generator-based oxygen, and 66N Supplemental Oxygen denotes a particular onboard supplemental supply. The other options mix delivery devices (masks, concentrators) or other gases (heliOx, nitrogen, ozone), which aren’t the three oxygen source types described here.

Oxygen on an aircraft comes in three main forms: portable O2 sources you can carry around, solid-state oxygen generators that produce oxygen on demand, and specific onboard supplemental oxygen systems used to provide extra oxygen in emergencies or medical situations. The trio listed fits those categories precisely: O2 Walkaround Bottles are the portable cylinders, Solid State Oxygen refers to generator-based oxygen, and 66N Supplemental Oxygen denotes a particular onboard supplemental supply. The other options mix delivery devices (masks, concentrators) or other gases (heliOx, nitrogen, ozone), which aren’t the three oxygen source types described here.