Pre-Solo Test of Air Regulations (PSTAR) Practice Exam

With increasing alcohol consumption, a pilot's ability to tolerate hypoxia deteriorates. Alcohol is a depressant that affects the central nervous system, impairing cognitive functions and physical coordination. When a pilot consumes alcohol, their body and brain become less efficient at functioning in low-oxygen environments, which can occur at higher altitudes.

Hypoxia, a condition arising when the body does not receive adequate oxygen, can significantly affect a pilot's performance, judgment, and decision-making capabilities. Alcohol exacerbates these effects because it depresses the respiratory system, making it harder for the pilot to respond to the symptoms of hypoxia. This lack of awareness and impaired judgment can lead to dangerous situations when flying, as pilots may not recognize when they are experiencing hypoxia or may delay taking necessary actions. Therefore, as alcohol consumption increases, the safety and operational ability of a pilot in hypoxic conditions significantly decline.