FAA Ground School Practice Test

Clouds are classified into four families based on their:

1. Color

2. Height range

3. Shape

4. Density

The correct answer is: Height range

Clouds are classified into four families primarily based on their height range in the atmosphere. This method of classification allows pilots and meteorologists to understand the weather patterns and phenomena associated with different cloud types, as the height at which a cloud forms can be indicative of the atmospheric conditions present. Clouds are categorized into low, middle, high, and clouds with vertical development, with each family having specific characteristics and associated weather implications. For instance, low clouds often include stratus and cumulus, while high clouds are typically cirrus and cirrostratus. Understanding these height classifications aids in predicting both turbulence and potential weather changes. Classifying clouds by their height range is the most useful approach for aviation safety and meteorological forecasting, as it directly relates to the conditions and behaviors of the atmosphere at various altitudes.