California
California CDL Practice Tests - All Endorsements

If winding down roads with wine barrels on a flatbed or taking lumber over the I-5 is calling out to you, driving trucks is for you. You'll need a Commercial Driver's License (CDL). Before heading over to the DMV, make sure you know what you need. We've got practice tests covering the official exam and additional endorsements like passenger and school busses, doubles/triples, tank vehicles, hazardous materials, and more. These practice tests are for commercial transport only. For Car tests, switch to the Car Tests tab.

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CA commercial driver's license

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You need to pass these knowledge exams at the DMV. Practice each one below.
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    General Knowledge
    664 questions
    CA CDL Diagnostic Test
    15 questions
    General Knowledge Test 1
    20 questions
    General Knowledge Test 2
    50 questions
    General Knowledge Test 3
    50 questions
    General Knowledge Test 4
    50 questions
    General Knowledge Test 5
    50 questions
    General Knowledge Test 6
    50 questions
    General Knowledge Test 7
    50 questions
    General Knowledge Test 8
    50 questions
    General Knowledge Test 9
    50 questions
    General Knowledge Test 10
    50 questions
    General Knowledge Test 11
    50 questions
    General Knowledge Test 12
    50 questions
    General Knowledge Test 13
    94 questions
    General Knowledge Marathon
    All 694 questions
    General Knowledge Exam Simulator
    50 random questions
    General Knowledge Cheat Sheet
    Class A/B ELDT Video Course
    Video Audio PDF
    Basic Operations
    • Orientation
    • Control Systems and Dashboards
    • Pre- and Post-Trip Inspection
    • Basic Operations
    • Shifting and Transmissions
    • Backing and Docking
    Safe Operating Practices
    • Visual search
    • Communication
    • Distraction
    • Speed management
    • Space management
    • Night operation
    • Extreme conditions
    Advanced Operating Procedures
    • Hazard Perception
    • Skid Control
    • Railroad-Highway Grade Crossing
    Vehicle Systems
    • Identification and diagnosis of malfunctions
    • Roadside inspections
    • Maintenance
    Non-Driving Operations
    • Handling and documenting cargo
    • Environmental compliance
    • Hours of Service
    • Fatigue and wellness awareness
    • Post-crash procedures
     
    • External communication
    • Whistleblower and coercion
    • Trip planning
    • Drugs and alcohol
    • Medical requirements
    Watch demo part
    Video Audio PDF
    Pre-Trip Inspection
    91 questions
    Pre-Trip Inspection Test 1
    20 questions
    Pre-Trip Inspection Test 2
    20 questions
    Pre-Trip Inspection Test 3
    20 questions
    Pre-Trip Inspection Test 4
    31 questions
    Pre-Trip Inspection Marathon
    All 91 questions
    Pre-Trip Inspection Exam Simulator
    20 random questions
    Pre-Trip Inspection Cheat Sheet
    Pre-Trip Inspection Video by Apex CDL Institute
    01m 05s
    How to perform a CDL Class A Pre-Trip Inspection
    22m 40s
    Pre-Trip Inspection Video
    by CDL College
    31m 58s
    Full Exterior and in Cab PTI by West Georgia Tech College
    16m 13s
    Air Brake Tests for Combination Vehicles
    05m 22s
    Ambulance Vehicle
    51 questions
    CA DMV Ambulance Driver Test
    51 questions
    The Challenge Bank™
    Your missed questions

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    FREE E-Book

    Many people arrive at the DMV overconfident and underprepared because they fail to do some of the simple things that would allow them to pass easily. What follows are the 10 steps that every aspiring commefcial driver should take to prepare for his or her official CDL or CLP knowledge exam.

    10 Things You Should Do Before Your CDL Knowledge Exam

    Many people arrive at the DMV overconfident and underprepared because they fail to do some of the simple things that would allow them to pass easily. What follows are the 10 steps that every aspiring commefcial driver should take to prepare for his or her official CDL or CLP knowledge exam.

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    Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

    Reviewed for legal and handbook accuracy

    Steven Litvintchouk

    M.S., Chief Educational Researcher (ACES member)

    Last verified for accuracy on

    Andrei Zakhareuski, Co-founder & CEO, Driving-Tests.org

    Test design and learning experience oversight

    Andrei Zakhareuski

    Co-founder & CEO, Driving-Tests.org

    Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the California DMV changes its handbook or website information. Official sources we check: