Airfield Management Block 3 Practice Test

Obstruction lights have different color schemes for nighttime versus daytime. Which statement is correct?

Night: aviation blue; Day: aviation green. Night: orange and white; Day: red. Night: red or high intensity white; Day: orange and white paint unless waived by MAJCOM. Night: white; Day: orange.

Correct Answer:

Night: red or high intensity white; Day: orange and white paint unless waived by MAJCOM.

Explanation:

Obstruction lighting is designed to maximize visibility in different lighting conditions. At night, the lights themselves are used to signal the obstacle, typically in red or with high‑intensity white. During the day, the lights are not relied upon as much because sunlight can wash them out, so the obstacle is marked with orange and white paint to ensure it stands out in daylight. Some cases may be waived or modified by MAJCOM, but the standard approach is night red or high‑intensity white, and day orange and white paint. This is why the correct statement aligns with those practices, whereas the other color combinations don’t match how daytime and nighttime marking are normally done.

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