Airport Engineering
The runway orientation is made so that landing and takeoff are

None of these
Against the wind direction
Perpendicular to wind direction
Along the wind direction

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Airport Engineering
Effective length of a runway is the distance between

Ends of the clear way on either side
Ends of the runway
Point of intersection of the obstruction clearance line and the extended plane of the runway surface, and the other end of the runway
Point of intersection of the glide path and the extended plane of the runway surface and the other end of the runway

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