A passenger oxygen generator is rated to supply oxygen for a certain duration. Which duration in minutes is correct?

A passenger oxygen generator is rated to supply oxygen for a certain duration. Which duration in minutes is correct?

• A. 12 minutes
• B. 13 minutes
• C. 14 minutes
• D. 16 minutes

Answer: (B)

A passenger oxygen generator has a fixed duration it can reliably provide oxygen, determined by how much oxygen it contains and the rate at which it delivers gas during deployment. The rating is established in the equipment’s spec so that, under standard conditions, it will supply oxygen for a specific number of minutes. In this case, the official rating is 13 minutes, so that is the duration used for certification and training. Shorter durations would mean the unit isn’t meeting its certified capability, while longer durations would exceed what the design guarantees. Therefore, 13 minutes is the correct duration.

A passenger oxygen generator has a fixed duration it can reliably provide oxygen, determined by how much oxygen it contains and the rate at which it delivers gas during deployment. The rating is established in the equipment’s spec so that, under standard conditions, it will supply oxygen for a specific number of minutes. In this case, the official rating is 13 minutes, so that is the duration used for certification and training. Shorter durations would mean the unit isn’t meeting its certified capability, while longer durations would exceed what the design guarantees. Therefore, 13 minutes is the correct duration.