Final answer:
3) By having blurred vision, Fatigue can be recognized by symptoms such as feeling tired and sleepy, having difficulty in concentrating, experiencing blurred vision, and feeling irritable and moody, all of which can impact the ability to safely operate a UA.
Step-by-step explanation:
Recognizing fatigue can be critical, especially in professions requiring high levels of concentration and safety awareness, such as piloting drones for inspections. Common indications that someone is experiencing fatigue include feeling tired and sleepy, which might occur after a long drive and impact one's ability to remain alert. Furthermore, fatigue can manifest as difficulty in concentrating, potentially leading to dangerous mistakes during the operation of a UA (Unmanned Aircraft).
Visual disturbances such as blurred vision are also signs of fatigue and can impair one's ability to accurately assess and respond to situations. Lastly, changes in mood such as being irritable and moody are psychological signs of fatigue that could affect decision-making and interactions with others in a professional setting. These symptoms are consistent with the effects of sleep deprivation, which can significantly impair cognitive and motor functions and increase the risk of accidents.