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California driver knowledge practice

Original practice questions on road signs, traffic rules, right-of-way, and safe driving — written from California's own public driving law (the California Vehicle Code).

From the law

Every California question stands on California's law.

Impaired driving · California

A driver age 21 or older is legally over the limit once their blood alcohol concentration reaches which level?

A0.05%
B0.08%
C0.10%
D0.12%
California Vehicle Code § 23152(b)
Road signs · California

A red, eight-sided (octagonal) sign at an intersection requires a driver to do what?

ASlow down and proceed if it looks clear
BCome to a complete stop
CYield to traffic on the left only
DStop only when other cars are present
National sign standard (MUTCD) · used by every state

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California Driver Knowledge Practice · DriveTestIQ