Emergency exits on USCG helicopters are marked with lettering in which formats?

• A. Black
• B. White
• C. Yellow
• D. Black, White, and Yellow lettering

Answer: (D)

Reading emergency exit markings clearly in a helicopter depends on high contrast and visibility in varied conditions. Using lettering in Black, White, or Yellow provides flexible, high-contrast options against different interior and exterior surfaces and under different lighting. This helps crew and passengers quickly spot exits whether the cabin is bright, shadowed, smoky, or sunlit. One color alone could be hard to read on some backgrounds, so offering multiple color formats ensures legibility in all typical operating environments.