Home › CDL Practice Tests › General Knowledge Questions › Question 61
When is a driver most at risk of falling asleep at the wheel?
- A.During the hours the body is normally used to sleeping, such as late night and early morning
- B.Right after a full night of sleep
- C.Only on straight, flat highways
- D.Only after eating a large lunch
Correct answer
A. During the hours the body is normally used to sleeping, such as late night and early morning
Why
The body's internal clock pushes hardest toward sleep in the overnight and early morning hours, no matter how interesting the road is. Planning trips and rest around those hours greatly reduces sleep-related crash risk.
Manual topic: Safe Driving - Staying Alert and Fit to Drive · From the General Knowledge practice bank (GK-061).