The California CDL knowledge test is administered by California Department of Motor Vehicles. This free practice test covers the 10 areas the DL 650, California Commercial Driver Handbook teaches, from licensing and cdl rules to hazmat and school bus, with 100 questions written for California and every answer explained. Pick 25, 50, or 100 questions and start; there is no sign-up.
The California bank holds 100 questions written for the DL 650, California Commercial Driver Handbook (2019-2021, August 2023 accessible edition), 2 of them illustrated with a sign, signal, marking, or road scene. Choose a Quick check of 25, a Practice run of 50, or the Full challenge of 100 on the next screen, then choose coaching mode, which explains every answer as you go, or exam mode, which holds the explanations until the end and still shows your running score. It is free, there is no sign-up, and a test in progress is saved on this device.
Start the California practice testA California driver plans to operate a single vehicle rated at 26,001 pounds. What licensing conclusion follows from the vehicle rating?
Why: A single vehicle with a gross vehicle weight rating of 26,001 pounds or more is a commercial motor vehicle for CDL purposes. Therefore, the supported response is "A CDL is required".
How far ahead should a commercial driver generally scan while moving?
Why: Commercial drivers should look at least 12 to 15 seconds ahead, roughly one block at low speed or a quarter mile on a highway. Therefore, the supported response is "At least 12 to 15 seconds".
Warehouse staff loaded and sealed a truck. Who remains responsible for safe cargo-related operation?
Why: The driver is responsible for inspecting, securing, and safely operating with cargo even when another person loaded it. Therefore, the supported response is "The driver".
A vehicle is designed for 12 people including its driver. Which CDL endorsement does the passenger-capacity rule require?
Why: A driver needs a CDL with a P endorsement to operate a vehicle designed to transport more than 10 people, including the driver. Therefore, the supported response is "Passenger endorsement P".
Which loading and driving combination best reduces a tractor-trailer's rollover risk?
Why: Keeping cargo low and centered and slowing before turns reduces rollover risk in a combination vehicle. Therefore, the supported response is "Cargo low and centered, with slow turns".
May a commercial learner's permit holder transport a placarded hazardous-material shipment?
Why: A driver must hold an H endorsement before transporting hazardous material that requires placards, and a CLP holder may not transport hazardous material. Therefore, the supported response is "No, a CLP holder may not transport hazardous material".
These are California's own topic areas, from licensing and cdl rules to hazmat and school bus, each with 10 questions. Under each one are two questions from the bank, shown without their answers; the practice test explains every one of them.
Take a Quick check of 25 in coaching mode. Read each explanation, including the ones you got right; it tells you the rule California tests, not just the answer.
Your account's Study tab ranks the 10 topics by your results. Read that chapter of the DL 650, California Commercial Driver Handbook, then take another Quick check to confirm the gap has closed.
Take the Full challenge of 100 in exam mode. Aim for 80 percent or better twice in a row; at that point you are answering from the rules, not from memory of the questions.
No. DMV Exam Pass is an independent study service and is not affiliated with California Department of Motor Vehicles. The questions are written in the style of the exam to prepare you for it; the official test is taken with the agency.
The 100 questions are spread evenly across 10 topics: Licensing And Cdl Rules, Inspection And Vehicle Control, Visibility Speed And Space, Hazards And Emergencies, Cargo Safety, Passenger Safety, Air Brakes, Combination Vehicles, Doubles And Tank Vehicles, and Hazmat And School Bus. Every test you take draws from all of them, so a weak area shows up quickly.
The California bank holds 100 questions. A Quick check of 25 takes about ten minutes, a Practice run of 50 about twenty, and the Full challenge of 100 about forty. You can pause any time.
No. Nobody outside the agency has the real questions, and we do not use, claim, or advertise leaked or exact exam questions. These are independently written questions that test the same rules, so what you learn transfers to whatever the real test asks.
The DL 650, California Commercial Driver Handbook (2019-2021, August 2023 accessible edition), published by California Department of Motor Vehicles. Every question here is written for it, and each explanation names the rule, so when you miss a question you know which chapter to read.
Coaching mode shows whether each answer was right, and why, before you move on; it is for learning. Exam mode holds the explanations and the correct choices until the end and still shows your running score; it is for checking readiness. Both draw from the same bank, and scoring happens on our servers, so no answer key is loaded in your browser.
Yes. 2 of the 100 questions are illustrated with a sign, signal, marking, or road scene, the way the CDL knowledge test presents them.
It is free, with no sign-up. An optional account saves your progress across devices and shows which topics need work.
Yes. A test in progress is saved on this device and offered again when you return. With an account, it is saved to your account as well, so you can continue on another device.
Aim for 80 percent or better on a Full challenge in exam mode, more than once. The official passing score is set by the agency; scoring consistently above 80 here means you are answering from the rules rather than from luck.