Topic 4 · Defensive Driving and Safe Driving Practices
Standing water on the road is dangerous because:
- It cools the brakes unevenly
- The tires can lose contact with the surface — correct answer
- It hides the lane markings only
Why
It is listed among the surfaces to avoid, and it is what causes hydroplaning. (Section 8, Slippery Surface Skids.)
Practise this in the real format
Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.
Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
More from Defensive Driving and Safe Driving Practices
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