Practice limits and how to adjust your speed, with questions based on the California Driver's Handbook.
15 mph
The usual limit near schools is 25 mph, but some school zones post limits as low as 15 mph.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
By 5 to 10 mph
On a wet road, slow down by 5 to 10 mph and leave more space ahead.
Source: California Driver's Handbook, Section 8, Safe Driving
When workers are present
Fines are doubled in highway construction or maintenance zones whenever workers are present.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
$1,000 or more
Fines can reach $1,000 or more, and they double in highway work zones whenever workers are there.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
15 mph
An intersection is blind if no corner has a stop sign. If your view is blocked, edge forward slowly until you can see.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
25 mph
Business and residential districts have a 25 mph limit unless a sign states otherwise.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
By half
Packed snow calls for half your normal speed. Ice calls for even less.
Source: California Driver's Handbook, Section 8, Safe Driving
10 mph
The limit for passing is 10 mph. You may never drive through the safety zone itself.
Source: California Driver's Handbook, Section 7, Laws and Rules of the Road (continued)
55 mph
The limit drops to 55 mph on two-lane undivided highways, unless signs say otherwise.
Source: California Driver's Handbook, Section 8, Safe Driving (continued)
No more than 30 mph
When you can't see farther than 100 feet, going faster than 30 mph is unsafe.
Source: California Driver's Handbook, Section 8, Safe Driving
We wrote these practice questions from the facts in the California Driver's Handbook (2025 edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.
DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the California DMV, and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.