Question Which of the following is not a sign of fatigue? Answers Ability to focus Daydreaming Yawning repeatedly Drifting from your lane Explanation Driving while fatigued is dangerous. Warning signs of fatigue include difficulty focusing; repeated yawning or rubbing of the eyes; daydreaming or wandering thoughts; and drifting out of your lane. Take a FREE Practice Test Now This questions appears in the following tests: Connecticut Knowledge Test Class A , South Dakota Knowledge Test Class A , Texas Knowledge Test Class B ,