Commercial Pilot License (CPL) 2026 – 400 Free Practice Questions to Pass the Exam

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What is a key characteristic of wind shear?

It occurs only in clear air

It typically develops at low altitudes

A key characteristic of wind shear is that it typically develops at low altitudes. Wind shear is defined as a rapid change in wind speed or direction over a short distance in the atmosphere. This phenomenon is most commonly encountered during takeoff and landing phases of flight, where the aircraft operates at lower altitudes.

At these altitudes, factors such as terrain, temperature gradients, and the presence of weather systems contribute to wind shear conditions. For instance, wind shear can occur behind thunderstorms or when flying over topography, affecting the airflow significantly as the aircraft approaches the ground.

In contrast, while wind shear can occur in clear air, predictability can vary, and it doesn't inherently enhance lift during takeoff. Understanding that wind shear is particularly relevant at lower altitudes is crucial for pilots to anticipate and manage the associated challenges effectively.

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It is always predictable

It enhances lift during takeoff

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