When the smoke configuration is selected, _________________.

When the smoke configuration is selected, _________________.

• A. ventilation is increased
• B. no ventilation air is recirculated
• C. only fresh air is used
• D. none of the ventilation is affected

Answer: (B)

When smoke configuration is selected, the system turns off the recirculation path. That means ventilation air is no longer drawn back through the cabin air recirculation fans and ducts. The cabin continues to receive conditioned air, but from outside air via the packs, not from recirculated cabin air. This minimizes the chance of smoke spreading through the ventilation system. So the key idea is to stop recirculated air to prevent smoke distribution, which is why this option is the best.

When smoke configuration is selected, the system turns off the recirculation path. That means ventilation air is no longer drawn back through the cabin air recirculation fans and ducts. The cabin continues to receive conditioned air, but from outside air via the packs, not from recirculated cabin air. This minimizes the chance of smoke spreading through the ventilation system.

So the key idea is to stop recirculated air to prevent smoke distribution, which is why this option is the best.