During boarding procedures, what item must be charged for 10 minutes?

During boarding procedures, what item must be charged for 10 minutes?

• A. Photo luminescent strips
• B. The oxygen masks
• C. The cabin lights
• D. The exit signs

Answer: (A)

Photo-luminescent strips along the aisle and at exits are designed to glow in low visibility, but they need light exposure to “charge.” When the cabin is lit for about 10 minutes before boarding, these strips absorb energy from the light and then can emit a visible glow if the power fails, guiding passengers to exits during an evacuation. Oxygen masks, the cabin lights themselves, and typical exit signs don’t rely on this charging process, so they aren’t the item that requires a 10-minute charge.

Photo-luminescent strips along the aisle and at exits are designed to glow in low visibility, but they need light exposure to “charge.” When the cabin is lit for about 10 minutes before boarding, these strips absorb energy from the light and then can emit a visible glow if the power fails, guiding passengers to exits during an evacuation. Oxygen masks, the cabin lights themselves, and typical exit signs don’t rely on this charging process, so they aren’t the item that requires a 10-minute charge.