Runway designation markers are to the nearest 1/10 of a degree.

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Multiple Choice

Runway designation markers are to the nearest 1/10 of a degree.

The orientation of runway designation markers is tied to the runway’s magnetic heading with high precision. In navigation and charting, headings are provided to the nearest tenth of a degree, and the markers on the runway reflect that precise orientation. The two-digit runway number you see on the pavement is the heading rounded to the nearest ten degrees, but the actual designation markers themselves are aligned to the heading to one-tenth of a degree, which is why this statement is true. It isn’t about daylight or about being unspecified—the markers exist regardless of lighting, and the precision used for the heading is routinely to 0.1 degree.

The orientation of runway designation markers is tied to the runway’s magnetic heading with high precision. In navigation and charting, headings are provided to the nearest tenth of a degree, and the markers on the runway reflect that precise orientation. The two-digit runway number you see on the pavement is the heading rounded to the nearest ten degrees, but the actual designation markers themselves are aligned to the heading to one-tenth of a degree, which is why this statement is true. It isn’t about daylight or about being unspecified—the markers exist regardless of lighting, and the precision used for the heading is routinely to 0.1 degree.

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