Private Pilot Stage 3 Test 2025 – 400 Free Practice Questions to Pass the Exam

A high-pressure system is characterized by descending air, which compresses and warms as it descends. This process leads to the inhibition of cloud formation, resulting in clearer skies and stable weather conditions. High-pressure systems are typically associated with dry, settled weather, which contrasts sharply with low-pressure systems that often bring storms and more turbulent conditions.

When air is descending in a high-pressure system, it promotes the evaporation of moisture, thereby reducing humidity and cloud cover. As a result, the presence of a high-pressure system is more likely to correspond with pleasant and stable weather, making it ideal for flying and outdoor activities.

In contrast, choices indicating storms, low temperatures, heavy precipitation, fog, and low visibility describe conditions more commonly associated with low-pressure systems, where rising air leads to cooling, cloud formation, and potential precipitation.