California DMV Written Test — Free Practice in Chinese and English
A free practice site for the California DMV Class C knowledge test, built for Chinese speakers. Every question appears in Chinese with the English original right below it, so you can study in the language you are comfortable with while getting used to the wording you will actually see at the DMV. No sign-up, no download, nothing to pay.
What you get
- 386 practice questions covering all eight exam topics
- 82 road sign images — sign questions are where most people lose points, and you cannot learn them from text alone
- Plain-language explanations on every question, in both languages
- Handbook key points from the official California Driver’s Handbook, Chinese and English side by side
- Progress is saved in your own browser. Nothing is uploaded.
Can you take the California written test in Chinese?
Yes. California DMV offers the knowledge test in several languages, Chinese among them, and you choose the language on the touchscreen at the DMV office. That is exactly why this site keeps both languages visible: you answer in Chinese, but you also see the English terms for right-of-way, lane markings, curb colors and so on — useful when you read road signs or talk to an officer in English.
How the test works
A first-time Class C knowledge test is typically 46 questions and you need 38 correct (about 83%) to pass. Renewal tests are shorter. Questions come from the official California Driver’s Handbook. Check dmv.ca.gov for the current official rules — this site is an independent study tool and is not affiliated with the California DMV or any government agency.
Sample questions
If you are 21 years of age or older, it is illegal to drive with a blood alcohol concentration (BAC) of:
如果你已满21岁，驾驶时血液酒精浓度（BAC）达到多少即属违法？
Answer: 0.08% or higher / 0.08% 或以上
For drivers 21 and older, it is illegal to drive with a blood alcohol concentration of 0.08% or higher.
For a driver under 21 years of age, it is illegal to drive with a blood alcohol concentration (BAC) of:
未满21岁的驾驶人，驾驶时血液酒精浓度（BAC）达到多少即属违法？
Answer: 0.01% or higher / 0.01% 或以上
California has a zero-tolerance policy for drivers under 21, so it's illegal to drive with a BAC of 0.01% or higher, meaning essentially any alcohol at all.
When driving a commercial vehicle, it is illegal to have a blood alcohol concentration (BAC) of:
驾驶商用车辆时，血液酒精浓度（BAC）达到多少即属违法？
Answer: 0.04% or higher / 0.04% 或以上
The standard is stricter for commercial vehicle drivers, who may not drive with a BAC of 0.04% or higher.
Under California's implied consent law, if a peace officer lawfully arrests you for driving under the influence, you:
根据加州的暗示同意法，如果警员合法逮捕你涉嫌酒驾，你：
Answer: Must submit to a chemical test of your blood or breath / 必须接受血液或呼气的化学检测
Under implied consent, simply driving in California means you've already agreed to submit to a chemical test of your blood or breath if lawfully arrested for DUI.
Compared with taking the test, what happens if you refuse a chemical test after a lawful DUI arrest?
因酒驾被合法逮捕后拒绝接受化学检测，和接受检测相比会怎样？
Answer: A longer license suspension plus additional penalties / 吊销驾照的期限会更长，还要面对额外处罚
Refusing a chemical test won't get you off the hook; it results in a longer license suspension and extra penalties.
Study by topic
- Signs & Signals — 交通标志与信号灯
- Right-of-Way & Pedestrians — 先行权与行人
- Turns & Lanes — 转弯与车道
- Speed & Following Distance — 速度与安全距离
- Parking & Curbs — 停车与路缘
- Safe Driving — 安全驾驶
- Laws, Documents & Penalties — 法规、文档与罚则
- Alcohol & Distractions — 酒精与分心驾驶
Start practicing
Start practice → Handbook key points → FAQ →
The practice interface is in Chinese with English under every question and answer choice. If you read English only, the sample questions above and the handbook pages give you the English text directly.