- Alabama: Test 1 / Test 2
- Alaska: Test 1 / Test 2
- Arizona: Test 1 / Test 2
- Arkansas: Test 1 / Test 2
- California: Test 1 / Test 2
- Colorado: Test 1 / Test 2
- Connecticut: Test 1 / Test 2
- Delaware: Test 1 / Test 2
- District of Columbia: Test 1 / Test 2
- Florida: Test 1 / Test 2
- Georgia: Test 1 / Test 2
- Hawaii: Test 1 / Test 2
- Idaho: Test 1 / Test 2
- Illinois: Test 1 / Test 2
- Indiana: Test 1 / Test 2
- Iowa: Test 1 / Test 2
- Kansas: Test 1 / Test 2
- Kentucky: Test 1 / Test 2
- Louisiana: Test 1 / Test 2
- Maine: Test 1 / Test 2
- Maryland: Test 1 / Test 2
- Massachusetts: Test 1 / Test 2
- Michigan: Test 1 / Test 2
- Minnesota: Test 1 / Test 2
- Mississippi: Test 1 / Test 2
- Missouri: Test 1 / Test 2
- Montana: Test 1 / Test 2
- Nebraska: Test 1 / Test 2
- Nevada: Test 1 / Test 2
- New Hampshire: Test 1 / Test 2
- New Jersey: Test 1 / Test 2
- New Mexico: Test 1 / Test 2
- New York: Test 1 / Test 2
- North Carolina: Test 1 / Test 2
- North Dakota: Test 1 / Test 2
- Ohio: Test 1 / Test 2
- Oklahoma: Test 1 / Test 2
- Oregon: Test 1 / Test 2
- Pennsylvania: Test 1 / Test 2
- Rhode Island: Test 1 / Test 2
- South Carolina: Test 1 / Test 2
- South Dakota: Test 1 / Test 2
- Tennessee: Test 1 / Test 2
- Texas: Test 1 / Test 2
- Utah: Test 1 / Test 2
- Vermont: Test 1 / Test 2
- Virginia: Test 1 / Test 2
- Washington: Test 1 / Test 2
- West Virginia: Test 1 / Test 2
- Wisconsin: Test 1 / Test 2
- Wyoming: Test 1 / Test 2
Free Colorado CDL Permit Practice Test: General Knowledge 2025
Part of mandatory Entry-Level Driver Training Course Based on 2025 CO commercial driver's license manualAvailable in EN, ES
50questions
10mistakes allowed
80%passing score
Welcome! You’re probably here because you want to pass the official General Knowledge test on commercial driving theory, which you must do to obtain a Commercial Learner’s Permit (CLP). We hope you’ve been reading the official Colorado Commercial Driver License Manual (Colorado CDL Handbook 2025) because the official knowledge test questions are based on it. But are you also looking for some additional help to further improve your chances of passing the test?
Well, that’s what we’re here for! We’ve helped thousands of aspiring car drivers and commercial drivers pass their respective knowledge exams, and we’re going to help you too.
This free Colorado CDL permit practice test, one of several we offer, is based on the official manual, just like the official General Knowledge test. The practice test is up to date as of January, 2025. As you practice answering questions about the stuff you’ve been reading in the manual, that material will get easier to remember, increasing your chances of passing the official exam. To make your studying easier, each of the 50 practice questions comes with a helpful hint and an explanation of the correct answer. The practice questions on this test will assess your knowledge of such topics as basic vehicle maneuvers, cargo management, emergency preparedness, and pre-trip inspections. If you need help to answer a question, our automated assistant can give you a hint. If you still miss the question, the assistant can provide you with an explanation of the correct answer.
Once you obtain a Commercial Learner’s Permit (CLP), you can start practicing for the official skills test. Passing the skills test is a necessary step toward obtaining a Commercial Driver’s License (CDL).
Once you hold a CDL, you can start earning real money as a licensed commercial driver. Economic sectors in Colorado’s diversified economy include agriculture (hay, corn, wheat, and beef), high-tech industries such as aerospace, manufacturing, and gold mining and production. All these sectors need truck drivers to transport their products. High-tech industries also need truck drivers to deliver equipment and supplies to them. Bus drivers are employed by public transportation services, both intra-city and inter-city. The state’s tourism industry also employs bus drivers to transport visitors to ski resorts and on tours through mountain towns.
You’ll soon become familiar with Colorado’s major commercial routes. Interstate 25, heavily used by truckers, runs from Wyoming through Denver and then to New Mexico. Interstate 70 runs from Utah to Maryland. Interstate 76 and U.S. Route 285 are used by truckers to transport agricultural products.
Perfect for
- First-time CO CDL and CLP applicants
- CDL holders adding endorsements
- CO CDL renewal applicants
What to expect on the actual exam
| How many questions | 50 |
|---|---|
| How many correct answers to pass | 40 |
| Passing score | 80% |
Unlock all 1,500+ exam-like questions for Colorado. Pass Guarantee
Become a member to unlock our extensive library of 1,500+ exam-like questions and get your Colorado ELDT certification online. Official FMCSA-approved national Entry-Level Driver Training provider.
Pass the first time, guaranteed
FAQs
What are the requirements you need to know?
To get a CDL license in Colorado, you need to obtain a commercial learner's permit (CLP) by passing knowledge tests. Hold the CLP for at least 14 days before taking the skills test. You also need to meet age, medical, and residency requirements. CDL training, while not mandatory, is highly recommended.
What is the associated cost?
The cost for a CDL in Colorado includes a $16.80 fee for the CLP and varying fees for the skills test, typically around $275. The CDL license fee is $35. Additional costs for medical exams and training programs vary.
What can get you disqualified from being eligible?
In Colorado, disqualifications include major traffic offenses like DUIs or reckless driving, criminal convictions involving motor vehicles, and failing the medical examination required for CDL holders.
How long does the process take?
The time to get a CDL in Colorado varies. After holding a CLP for 14 days, the duration depends on your readiness and the length of any CDL training program you choose to enroll in.
How many times are you allowed to fail?
In Colorado, you can retake the CDL test if you fail, but after two failed attempts, additional fees will be required for subsequent tests. There is no set limit on the number of retakes.
List of questions (classic view)
- Why should you cover cargo?
- Letting the air out of hot tires
- Always try to back toward the driver's side because
- According to the Colorado Commercial Driver License Manual, the minimum tread depth for front tires is
- Which of the following is NOT something you should check during a trip?
- How often must you stop to check your cargo while on the road?
- Before transporting a sealed load, you must check
- If you are drowsy, what action should you take before driving farther?
- Which of the following should you NOT do if you experience a tire failure?
- What will help a drunk sober up?
- How many tie-downs are required for a 20-foot load?
- Which of the following determine(s) the safe speed for going down a steep downgrade?
- What is a common cause of tire fires?
- Where should you place your warning devices, if you must stop on a one-way road or divided highway?
- The most important hand signal that you and a helper should agree on is
- How many seconds does it take for a normal tractor-trailer to clear a double track?
- How can you start moving without rolling backward?
- In which two special conditions should you downshift?
- Which of the following statements about retarders are correct?
- What is Gross Vehicle Weight (GVW)?
- Which of the following is a key steering component?
- On wet roads, you should reduce your speed by
- During your pre-trip test, when examining hoses with the instructor, you need to look for
- How can you tell if your vehicle is equipped with an anti-lock braking system (ABS)?
- Which of these is NOT part of the basic method for shifting up?
- What is the definition of a hazard?
- Which of the following is NOT true about an escape ramp?
- If you are traveling at 55 mph in a 30-foot vehicle, you should leave ___ seconds of following distance.
- Hazardous materials placards are
- To avoid becoming a distracted driver,
- An anti-lock braking system (ABS) will
- For how long will you lose your CDL driving privileges if you are convicted of a second DUI offense in either a CMV or your private vehicle?
- The temperature has just dropped to freezing. Which of the following areas may be slippery?
- To maintain alertness during the trip, drivers should
- If you double your speed, how much more distance will it take to stop?
- Total stopping distance equals
- In your emergency kit, you do not need to have
- When backing, it is important to use a helper
- Which of the following types of vehicles can be operated without a CDL?
- What is the best way to calculate how many seconds of following distance you have?
- How far ahead should drivers look while driving, according to the manual?
- On which of the following types of fires should you NOT use a B:C fire extinguisher?
- What might happen if you swing wide to the left before you turn right?
- While performing the pre-trip inspection, you should place the starter switch key into your pocket because
- While driving at night, which beams should you use as often as you can?
- To transport cargo safely, which of these are you NOT responsible for?
- Do empty trucks have the best braking?
- You should inspect wheel bearing seals for
- Starting the engine and inspecting the cab involves each of the following tasks, except
- To help you stay alert and safe while driving, you should
More resources
You may also like
CO CDL Practice Test App
Download our free iOS or Android app and practice for your driving test offline or on the go.
10 Things You Should Do Before Your Driving Knowledge Exam (PDF)
Many people do their best but still get to the DMV overconfident and underprepared because they fail to do some of the simple...
Open PDF
Are you in another state?