Regulations & HealthQuestion 119 of 120
Which of the following is the most reliable way to prevent driver fatigue?
a.Getting adequate sleep before the trip and scheduling driving during normal waking hours where possible
b.Drinking energy drinks throughout the run
c.Turning up the radio and lowering the cab temperature
d.Taking short naps only after fatigue becomes severe
Explanation
Only sleep restores alertness, and driving during the body's natural low points such as the early morning hours sharply raises crash risk. Stimulants and sensory tricks mask fatigue temporarily, and waiting until fatigue is severe means you are already impaired.
Practice all 120 questions free — no signup required.
Related questions on this topic
- You are convicted of two serious traffic violations, such as excessive speeding and reckless driving, in separate incidents within a three-year period. What is the result?
- You are driving on the interstate and your phone rings. What does federal regulation allow?
- What is the penalty exposure for a CDL holder convicted of texting while driving a commercial motor vehicle?
- How long is a standard medical examiner's certificate valid for an interstate commercial driver with no disqualifying conditions?
- You are two hours from your delivery when you realize you are struggling to stay awake and have drifted within your lane. What does the regulation require?
- What does federal regulation require regarding seat belt use in a commercial motor vehicle?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against Commercial Driver's License (CDL) General Knowledge Test · How we review