Practice question
Clearance lights on a commercial motor vehicle serve what primary purpose?
- To illuminate the road directly in front of the vehicle
- To indicate the overall width and height of the vehicle to other drivers, especially at night
- To signal lane changes
- To provide lighting inside the cargo area
Answer: B — To indicate the overall width and height of the vehicle to other drivers, especially at night
The correct answer is shown above. Try the full quiz for additional practice.
Practice more: MA CDL General Knowledge Practice Questions - Massachusetts CDL General Knowledge Test Exam →