California Car / Permit practice question · Road Signs
A yellow, diamond-shaped sign is used to:
Answer choices
- Warn of possible hazards or changes ahead— Correct answer
- Give directions to cities and services
- Mark the end of a construction zone
- Show the legal speed limit
Why this is the answer
Diamond-shaped signs warn you of specific road conditions and dangers ahead, so you can slow down and prepare. They are not rule signs. Rules you must obey, such as speed limits, appear on white rectangular regulatory signs. Obey warning signs whatever their shape or color, and treat the diamond as a prompt to stay alert for what comes next.
Source: California Driver Handbook — Warning Signs
Content reviewed against official driver handbooks · August 12, 2026
More Road Signs questions
- If you accidentally drive onto a roadway against the flow of traffic and see DO NOT ENTER and WRONG WAY signs, you should:
- What does a yellow diamond-shaped sign showing a red-and-white yield symbol mean?
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- What does a yellow diamond-shaped sign with an arrow that curves one way then the other mean?
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