What is the duration of the emergency flashlight?

• A. 45 minutes
• B. 15 minutes
• C. 60 minutes
• D. 30 minutes

Answer: (A)

The duration being tested is how long the emergency flashlight stays on after activation, which matters because you need reliable light to find exits and guide passengers during an evacuation when cabin power may be out. A typical emergency flashlight is designed to provide illumination for about 45 minutes, giving a comfortable margin to complete the initial exit search and reach a safe area even if delays or confusion occur. This duration balances sufficient light with practical battery size and weight for the aircraft's emergency equipment.

Shorter durations, like 15 or 30 minutes, may not cover the full evacuation time in larger cabins or in poor lighting. A longer duration, like 60 minutes, would require more battery capacity and weight that isn’t usually necessary for standard procedures, making 45 minutes the practical, commonly used specification.