When driving at night, you should:
Answer: B
Adjust your speed to keep your stopping distance within your sight distance.
During night drives, your headlight makes you visible to others. However, remember that, despite the beam from your headlight, it's still difficult to see at night. Your low beam gives you about 250 feet of visibility, and your high beam lets you see 350 to 500 feet ahead. Adjust your speed to keep your stopping distance within your sight distance.
All choices
- ADim your lights within 300 feet of an oncoming vehicle.
- BAdjust your speed to keep your stopping distance within your sight distance.
- CLook to the left side of the road when a vehicle is coming towards you.
Why the other answers are wrong
A. Dim your lights within 300 feet of an oncoming vehicle.
Choice A is wrong because you must dim your lights within 500 feet of an oncoming vehicle, not 300 feet.
C. Look to the left side of the road when a vehicle is coming towards you.
Choice C is wrong because looking to the right side of the road is recommended to avoid glare from oncoming headlights.
CDL General Knowledge Test Info
Questions on Exam
50
Passing Score
80%
Time Limit
Typically 60 minutes; varies by testing location
The General Knowledge test content is federally standardized, so this question applies in every state. Age limits, fees, and testing procedures do vary — check your state's CDL requirements.
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