Airport Engineering
Airport elevation is the reduced level above M.S.L. of

Lowest point of the landing area
None of these
Control tower
Highest point of the landing area

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Airport Engineering
The capacity of parallel runway pattern depends upon

Lateral spacing between two runways and navigational aids available
Lateral spacing between two runways, weather conditions and navigational aids available.
Weather conditions and navigational aids available
Lateral spacing between two runways and weather conditions

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