During preflight, what should you verify about emergency exit signs and floor proximity lighting?

• A. They are not required to be functional before departure.
• B. They are functional, illuminated, and clearly visible from passenger areas.
• C. They may be intermittently visible.
• D. They must be replaced after every flight.

Answer: (B)

The key idea is that emergency exit signs and floor proximity lighting must be ready and easy to see so passengers can find exits quickly, even in darkness or smoke. Before departure, these cues should be functional, remain illuminated, and be clearly visible from the passenger areas. Exit signs guide where to go, while floor proximity lighting marks the path along the aisle and toward exits if normal lighting fails. That reliability and visibility saves precious time during an evacuation.

This is why the only correct approach is that they are functional, illuminated, and clearly visible from passenger areas. The others imply conditions that would compromise safety: not requiring functionality before departure would be unsafe; intermittent visibility could confuse passengers; replacing after every flight is unnecessary and not how these systems are maintained.