A runway threshold is marked by a set of parallel stripes beginning at a distance of_______________?
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Answer: B. 6 m from runway end
Explanation
Runway threshold markings consist of parallel stripes beginning precisely six meters away. This specific starting distance ensures clear visibility for pilots landing aircraft. Civil aviation standards strictly regulate the exact positioning of all runway markings. Runway thresholds designate the beginning portion available for landing fixed-wing aircraft. Markings provide pilots with vital visual aiming points during approach procedures. Standardized painting patterns enhance safety across global commercial aviation airfield networks.
Airfield maintenance crews repaint threshold markings periodically to maintain high visibility. Precise threshold placement ensures aircraft touch down within safe stopping zones. Regulatory compliance during construction prevents costly redesigns and operational flight delays. Other distances violate standard international aviation markings and visual guidance criteria. Incorrect stripe placement could miscue pilots regarding the exact landing zone. Nonstandard threshold layouts increase the risk of runway excursions during adverse weather.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
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