AAAE ACE Operations Module 2 Practice Exam

During temporary runway closures, what marking is allowed near the runway ends?

A single white X at the center No Xs allowed near the runway ends A flashing beacon at the runway end Lighted X within 250 ft of each end or material Xs are allowed

Correct Answer:

Lighted X within 250 ft of each end or material Xs are allowed

Explanation:

When a runway is temporarily closed, the ends must be clearly marked to show it isn’t available. The marking used is a cross X placed near each end. You can meet this requirement either by painting material Xs on the pavement within 250 feet of each end, or by installing a lighted cross X at those ends. This X shape is the clear, universally understood signal that the runway end is closed, which helps prevent accidental use. A single X at the center doesn’t communicate end closure of the runway, and a flashing beacon by itself isn’t the standard closing marker. Saying no Xs are allowed contradicts the established practice of marking closed runways with Xs near the ends.

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