USHPA Paragliding Novice (P-2) Practice Exam

Which phenomenon is most likely to be found upwind of an obstacle such as a tree, hill, or another aircraft?

Hazardous flying conditions indicators Flight duration with full speed bar Mechanical turbulence location Minimum sink flight effect

Correct Answer:

Mechanical turbulence location

Explanation:

Mechanical turbulence is produced when wind encounters a physical obstacle like a tree, hill, or another aircraft. The obstacle disrupts the smooth flow, creating gusts, eddies, and irregular air movement. This disturbance starts where the air first meets the obstacle and can be felt upwind as the flow is forced to rise, bend, and mix. That’s why you’re likely to encounter these turbulent, chaotic air pockets near the windward side of such obstacles. The other options don’t describe a phenomenon tied to how airflow is disturbed by obstacles in the same way: they refer to conditions or effects that aren’t specifically about the turbulence generated by obstruction.

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