Topic 4 · Defensive Driving and Safe Driving Practices
In a heavy rainstorm you cannot see more than 100 feet ahead. What is the fastest it is safe to drive?
- 30 mph — correct answer
- The posted speed limit, as long as your wipers are on
- 45 mph
Why
In a heavy rainstorm or snowstorm you may not be able to see more than 100 feet ahead. If you cannot see farther than 100 feet, it is not safe to drive faster than 30 mph. (Handbook, Section 8.)
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.
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