FAA Part 107 Drone Practice Test

If a pilot consumes alcohol, how long must they wait before operating a small UAS?

1. 4 hours

2. 6 hours

3. 8 hours

4. 12 hours

The correct answer is: 8 hours

The correct answer is based on the established safety regulations for pilots operating small Unmanned Aircraft Systems (UAS) under the FAA Part 107 guidelines. Specifically, the regulation specifies that a pilot must not operate a UAS within eight hours of consuming alcohol. This rule is designed to ensure that pilots are functioning at their best, as alcohol consumption can significantly impair judgment, reaction time, and overall cognitive and physical functioning. This eight-hour period, often referred to as the "bottle to throttle" rule, is crucial for promoting safety in aerial operations and helps prevent accidents that could arise from impaired piloting. The guideline reflects a common standard across various aviation sectors, aligning with practices already in place for manned aircraft operators. Establishing this time frame indicates an understanding of how alcohol metabolizes in the body and its effects on performance. While other options may suggest shorter waiting periods, the health and safety regulations prioritize a minimum of eight hours to mitigate any potential risks associated with operating a UAS after alcohol consumption.