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Question
What is the purpose of rumble strips?
Answers
A.  They alert drivers to potential tire problems.
B.  They test a vehicle's shock absorbers.
C.  Through vibration and sound, they alert inattentive drivers to the fact that their vehicles have left the travel lane.
Explanation
Rumble strips create noise and vibrations to warn drowsy or inattentive drivers that they are straying off of the road or are approaching a stop sign or signal.
Answer Statistics
10.11 % of our users get this question wrong.
This question's difficulty is Medium

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