Home › CDL Practice Tests › General Knowledge Questions › Question 325
How does extreme heat affect the driver, and what is the safety response?
- A.Heat causes fatigue, dehydration, and slower reactions, so hydrate, use cooling, take breaks, and stop if you feel ill or faint
- B.Heat has no effect on alertness
- C.Energy drinks replace water fully
- D.Driving through heat illness is expected
Correct answer
A. Heat causes fatigue, dehydration, and slower reactions, so hydrate, use cooling, take breaks, and stop if you feel ill or faint
Why
A driver who is overheated or dehydrated makes the same kinds of errors as a tired driver. Heat exhaustion can progress to heat stroke, which is a medical emergency, so early symptoms are a stop-and-recover signal, not an inconvenience.
Manual topic: Hot Weather - Driver Health · From the General Knowledge practice bank (GK-325).