The Colorado CDL knowledge test is administered by Colorado Department of Revenue, Division of Motor Vehicles. This free practice test covers the 10 areas the Commercial Driver License Manual teaches, from classification permits and restrictions to hazmat and school bus, with 100 questions written for Colorado and every answer explained. Pick 25, 50, or 100 questions and start; there is no sign-up.
The Colorado bank holds 100 questions written for the Commercial Driver License Manual, 1 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 Colorado practice testA Colorado applicant will drive a 27,500-pound combination whose trailer is rated at 12,000 pounds. Which CDL class does that weight pattern require?
Why: A Class A combination has a gross combination weight rating of at least 26,001 pounds and a towed-unit gross vehicle weight rating above 10,000 pounds. Therefore, the proposed supported response is "Class A".
On an open Colorado highway, about how far ahead should a commercial driver scan to maintain the recommended 12-to-15-second view?
Why: A commercial driver should look at least 12 to 15 seconds ahead, which is about one city block at lower speed or a quarter mile on a highway. Therefore, the proposed supported response is "About one-quarter mile".
Warehouse employees load and seal freight before a driver arrives. Who retains responsibility for the vehicle's cargo safety duties?
Why: The driver remains responsible for inspecting cargo, recognizing overloads or poor balance, and ensuring securement even when another person loaded the vehicle. Therefore, the proposed supported response is "The commercial driver".
A Colorado applicant plans to operate an air-brake-equipped passenger bus. Which manual sections support the required knowledge preparation?
Why: A bus driver needs a passenger endorsement and knowledge of Sections 2 and 4; a bus with air brakes also requires the Section 5 air-brake knowledge component. Therefore, the proposed supported response is "Sections 2, 4, and 5".
Compared with an empty combination, how much greater does the manual say a fully loaded rig's rollover likelihood can be in a crash?
Why: Fully loaded combination vehicles are about ten times more likely than empty rigs to roll over in a crash, so steering and speed changes must be controlled. Therefore, the proposed supported response is "About ten times greater".
How must one required hazard placard be displayed around a cargo vehicle?
Why: A placarded vehicle must display at least four identical placards, positioned on the front, rear, and both sides and readable from each direction. Therefore, the proposed supported response is "On the front, rear, and both sides with four identical placards".
These are Colorado's own topic areas, from classification permits and restrictions 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 Colorado tests, not just the answer.
Your account's Study tab ranks the 10 topics by your results. Read that chapter of the Commercial Driver License Manual, 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 Colorado Department of Revenue, Division 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: Classification Permits And Restrictions, Inspection Control And Shifting, Seeing Communication Speed And Space, Hazards Emergencies And Driver Fitness, Cargo Safety, Passenger Safety, Air Brakes, Combination Vehicles, Doubles Triples 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 Colorado 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 Commercial Driver License Manual, published by Colorado Department of Revenue, Division 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. 1 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.