California General Knowledge CDL Practice Test
Practice for your General Knowledge CDL exam with questions based on the official California CDL handbook
Updated: August 2026
What's on the California General Knowledge CDL test
Answering from memory beats re-reading — retrieval practice roughly doubles what you remember a week later. These free questions are modeled on the official General Knowledge CDL knowledge test.
- Questions
- 50
- To pass
- 40/50 correct (80%)
- Updated
- June 2026
- 100% free
The California CDL General Knowledge test follows the AAMVA standard used by most states: 50 questions, with 40 correct answers (80%) needed to pass. A CDL learner's permit in California costs $100 (California Department of Motor Vehicles (DMV) fee schedule, June 2026).
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About the General Knowledge Test in California
The General Knowledge test is required for all CDL applicants in California. It covers traffic laws, safe driving techniques, vehicle inspection procedures, cargo handling, and federal regulations every commercial driver must know.
The General Knowledge test is part of the CDL written exam administered by the California Department of Motor Vehicles. You must pass this test along with the other required written tests to receive your Commercial Learner's Permit (CLP) in California.
Our practice questions are built from the official California CDL handbook and federal FMCSA regulations. Each question includes a detailed explanation to help you understand the material, not just memorize answers.
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