What two types of beacons are contained in the markings set?

• A. Infared and white
• B. Infrared and white
• C. Infared and Black
• D. Infrared and Black

Answer: (A)

Beacons in the markings set are provided in two signaling modes to cover different viewing conditions: infrared and white. The infrared beacon emits in a spectrum detectable by night-vision devices and infrared gear, so it can signal covertly or at night without being visible to the naked eye. The white beacon is bright and easily seen in daylight, making it reliable for general visibility in normal conditions. Together, they ensure the marking is recognizable whether observers are using special imaging equipment or just relying on sight, day or night. Black isn’t used as a beacon color because it wouldn’t stand out, while infrared and white are the intentional pair for versatile visibility.