JJ Keller Entry Level Driver Training CDL Practice Test 2025 – Comprehensive All-in-One Guide to Exam Success!

Fatigue is a significant concern for drivers, as it negatively impacts their ability to perform essential driving tasks. One of the most common signs of fatigue is reduced reaction time. When a driver is tired, their brain processes information more slowly, which can lead to delays in responding to critical situations on the road, such as sudden braking or unexpected obstacles. This slowed reaction time increases the risk of accidents, as it can prevent the driver from making timely decisions necessary for safe driving.

In contrast, the other options suggest abilities or states that are contrary to what one would expect from a fatigued driver. Increased focus on the road, enhanced ability to multitask, and greater awareness of surroundings are all characteristics of a well-rested and alert driver, whereas fatigue typically leads to decreased performance in these areas. Understanding the effects of fatigue is crucial for maintaining safety on the road, highlighting the importance of recognizing and addressing signs of tiredness before driving.