- Updated for December 2024
- Based on 2024 CO commercial driver's license manual
Free Colorado CDL HazMat Practice Test 2024
Colorado. Ah! The freedom that comes with driving through the Rocky Mountains. Since you’re on this site, you must be interested in the sweet opportunities available once you’ve added the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL). Why wouldn’t you be? This endorsement expands your job potential to an entire sector of organizations requiring this particular transport expertise. More jobs, more potential income. (If you’re younger than 21, you won’t be eligible for the Hazmat endorsement but don’t be discouraged. Check out our Double/Triple Trailers endorsement practice tests for intrastate driving.)
The Hazmat endorsement will permit you to transport materials that the U.S. government has deemed hazardous, like explosives, certain types of fuel, industrial chemicals, radioactive materials, and infectious substances. You might be worried and thinking: “Do I really want to transport radioactive materials?” Rest assured, the most important objective of this endorsement process is to ensure the utmost level of safety.
First, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check. The results from TSA can take weeks, so you’ll want to take advantage of that waiting period by preparing for the second major hurdle: the DMV knowledge test. The knowledge test is made up of 30 questions (24 out of 30 answers must be correct) and addresses federal regulations, substance handling, material packaging, and more (Colorado CDL Handbook 2024).
In the Centennial State, there are multiple industries that require a Hazmat endorsement, including chemicals used in mining (such as explosives and solvents), propane, gasoline, and materials used in oil and gas production. Ball Corporation (Boulder) and Xcel Energy (Denver) are just two of the companies needing truck drivers with a Hazmat endorsement. Excited about the growing list of opportunities? Let’s get you prepared!
Our online DMV Colorado CDL Hazmat Endorsement practice tests are strategically designed to focus on the necessary information. We get straight to what’s relevant, and our practice tests mimic what you will face on the official DMV test. If you get a question wrong, you’re immediately provided with an explanation of why another answer choice is correct. Once you have your TSA results in hand and feel prepared, you’ll visit the DMV with the necessary documents, pay the fees, and confidently take the test.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual CO DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- What are the two main places where the hazardous identification number appears?
- The Emergency Response Guidebook (ERG)
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at the dock to carry 100 cartons of battery acid?
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- You must NEVER smoke, or perform any activity involving fire, within 25 feet of
- Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- To determine if you need to use placards, which of the following do you NOT need to know?
- Cargo tanks are
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- Which of the following hazard classes uses a transport index to determine how much of it can be loaded on a single vehicle for transport?
- What is the purpose of a driver placarding his or her vehicle?
- How far away are you allowed to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?
- What are the major differences between a cargo tank and a portable tank?
- Which of the following is a necessary qualification for non-bulk packaging?
- In what location must you keep your shipping papers that describe any hazardous materials?
- Which of the following materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
- What is a technical name?
- How often should you check the tires on a placarded trailer that has dual tires?
- When shippers package the material, they are trying to
- A safe haven is
- A hazard class name or ID number may not be used to describe
- A vehicle contains 500 pounds each of Division 1.1 explosives and Division 1.2 explosives. You must have
- If the word “Forbidden” appears in the Hazard class column of an entry in the hazardous materials table,
- A vehicle placarded for hazardous materials must have placards on ____ sides.
- At a rest stop, you discover that your hazardous materials shipment is leaking but there is no phone available. What do you do?
- 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
Your go-to, trusted source
Experience the Driving-Tests differenceOur commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
- Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information. - Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation. - Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy. - Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors. - User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.
Get your ELDT certificate and pass CDL exams the first time. Guaranteed.
Get full access to our 3-in-1 program, starting at $79. CDL schools charge $3,000-$4,000 for that.
All 1,500 {$state-code} exam-like questions
Pass Guarantee: pass your permit exam, or get your money back
ELDT certification included
Official FMCSA-approved provider, instant completion reporting
Industry-leading 99.06% success rate
Compare with the average US passing rate of 49%
Trusted by over 1.15 Million customers
The only program recommended by DMVs
