California Car / Permit practice question · Road Signs
A yellow diamond sign showing two arrows that curve in opposite directions (an S-shape) warns that:
Answer choices
- A winding road with several curves is ahead— Correct answer
- The road ahead becomes one-way
- Two lanes are about to merge into one
- A passing lane is beginning ahead
Why this is the answer
This S-shaped diamond is the Winding Road warning sign, one of the diamond-shaped signs that warn of conditions ahead. It tells you the road bends back and forth, so slow down and stay alert. It does not mean the road becomes one-way or that lanes merge, which a different sign covers.
Source: California Driver Handbook — Warning Signs
Content reviewed against official driver handbooks · August 12, 2026
More Road Signs questions
- You approach a black-and-white sign with a horizontal arrow reading 'ONE WAY'. What does it tell you to do?
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- You approach a white sign reading 'NO PARKING ANY TIME'. What does it tell you to do?
- A diamond-shaped warning sign colored fluorescent yellow-green and showing a person walking means: