FAA Ground School Practice Test

What wind strength is indicated when the term "light and variable" is used?

1. 10 to 15 knots

2. 5 to 10 knots

3. Less than 10 knots

4. Greater than 15 knots

The correct answer is: Less than 10 knots

When the term "light and variable" is used, it refers to wind conditions that generally indicate a gentle breeze with wind speeds that are typically below 10 knots. In aviation terminology, this phrase suggests that the winds are not only light but may also change direction frequently, which means they are not strong enough to create consistent flight conditions. This understanding helps pilots gauge the environment they will be operating in, allowing them to anticipate potential fluctuations in wind direction and intensity. Recognizing wind conditions as "light and variable" aids in flight planning and safety, as pilots can adjust their strategies to accommodate the subtle impacts of such winds on their aircraft's performance.