FAA Ground School Practice Test

Which of the following is NOT a typical consequence of high engine temperatures?

1. Increased oil consumption

2. Potential engine damage

3. Enhanced fuel performance

4. Loss of power

The correct answer is: Enhanced fuel performance

High engine temperatures can lead to various detrimental effects on engine performance and longevity, and the only option that does not align with these adverse consequences is enhanced fuel performance. When engine temperatures rise excessively, the lubrication system can suffer due to higher oil temperatures, leading to increased oil consumption as oil may evaporate or break down more quickly. This combination can result in diminished lubrication effectiveness, potentially harming engine components. Additionally, prolonged exposure to high temperatures could result in serious engine damage, including warped cylinder heads or failure of engine seals, both of which could compromise engine integrity and safety. Moreover, high temperatures can reduce engine efficiency, often resulting in a loss of power. As the engine overheats, it can struggle to maintain optimal performance, which translates to decreased thrust and slower response times in aircraft. Therefore, enhanced fuel performance is not a typical consequence of high engine temperatures, as elevated temperatures actually tend to negatively impact engine efficiency and fuel combustion processes.