How many oxygen generators are there?

How many oxygen generators are there?

• A. 1 per row (3 masks)
• B. 2 per row (3 masks)
• C. 3 per row (3 masks)
• D. 4 per row (3 masks)

Answer: (A)

Emergency oxygen is delivered through chemical generators tied to each passenger’s mask. In this aircraft’s setup, the three masks in a single row share one oxygen source, so there is one oxygen generator per row. This arrangement keeps the system lighter and simpler while still providing adequate oxygen to the three passengers in that row for the duration of use. The generator is activated when the masks deploy and connects to the row’s masks via a common manifold, ensuring all three masks in that row receive oxygen simultaneously. Having more than one generator per row would add unnecessary weight and complexity without improving safety for that row, while having none would not meet the requirement to supply three masks.

Emergency oxygen is delivered through chemical generators tied to each passenger’s mask. In this aircraft’s setup, the three masks in a single row share one oxygen source, so there is one oxygen generator per row. This arrangement keeps the system lighter and simpler while still providing adequate oxygen to the three passengers in that row for the duration of use. The generator is activated when the masks deploy and connects to the row’s masks via a common manifold, ensuring all three masks in that row receive oxygen simultaneously. Having more than one generator per row would add unnecessary weight and complexity without improving safety for that row, while having none would not meet the requirement to supply three masks.