Airfield Management Block 2 Practice Test

Mean Sea Level refers to which concept?

Mean Sea Level Ocean depth measurement Height of the local terrain Elevation of the runways

Correct Answer:

Mean Sea Level

Explanation:

Mean Sea Level is the average surface level of the world’s oceans, measured over a long time to smooth out tides and waves. This average provides a standard reference plane for measuring how high land and objects sit above sea level. That’s why elevations on maps and airport runways are given relative to mean sea level. Ocean depth is the distance from that surface down to the seabed, not the surface level itself. Local terrain height and runway elevations are expressed with respect to this baseline, not the instantaneous sea surface.

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