- Updated for January 2025
- Based on 2025 IL commercial driver's license manual
Free Illinois CDL HazMat Practice Test 2025
Adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL) is a great way to open new job opportunities and increase your earning potential in Illinois. The Hazmat endorsement permits drivers to transport materials that the U.S. government has deemed hazardous. These materials range from explosives to certain types of fuel and industrial chemicals to radioactive materials and infectious substances. The most important objective of this endorsement process is to ensure your safety and protect the people and environment in your driving area.
To add this valuable endorsement, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check and the DMV knowledge test. The knowledge test covers federal regulations, substance handling, material packaging, quantity limits, and transport configurations for hazardous materials. Illinois’s knowledge test is made up of 30 questions and must be passed with a score of at least 80% (24 out of 30 answers must be correct) (Illinois CDL Handbook 2025). Also note that the minimum age for the Hazmat endorsement is 21 for interstate travel, though Illinois does allow drivers aged 18 and older the endorsement when not crossing state lines.
With all of that in mind, let’s get back to the potential income increase available with this endorsement. According to the 2025 Illinois CDL manual, the Hazmat endorsement generally adds 10–20% to a driver’s pay! In Illinois, there are multiple industries with cargo transport that require a Hazmat endorsement. If you don’t have it, those jobs won’t be available to you. Illinois is substantial in its fossil fuel transport, manufacturing, agriculture (pesticides and fertilizers), and pharmaceuticals, and {state-name) contains more nuclear power plants than any other state. This sounds amazing and a little daunting, right? It doesn’t have to be complicated at all.
Our online Illinois DMV Hazmat Endorsement practice tests are strategically designed to circumvent all of the extraneous information you’ll come across during an internet search and go straight to the relevant material. Our tests are designed to mimic both the structure and content of what you will face on the official DMV test.
Once you feel confidently prepared, you’ll visit the DMV with the necessary documents, submit your fingerprints and background check information, pay any related fees, and 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 IL DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- What is the purpose of a driver placarding his or her vehicle?
- What is a technical name?
- A safe haven is
- Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
- What are the major differences between a cargo tank and a portable tank?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- Which of the following are necessary qualifications for non-bulk packaging?
- In what location must you keep your shipping papers that describe any hazardous materials?
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- Which of the following materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
- You must NEVER smoke or perform any activity involving fire within 25 feet of
- If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?
- 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
- How often should you check the tires on a placarded trailer that has dual tires?
- When shippers package the material, they are trying to
- The Emergency Response Guidebook (ERG)
- Cargo tanks are
- To determine if you need to use placards, which of the following is NOT something you need to know?
- 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?
- 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 two main places where the hazardous material identification number appears?
- Division 1.1 or 1.2 explosives must not be transported in a combination vehicle if the vehicle includes
- If an "X" or an "RQ" is in the HM column of a shipping paper entry, then
- If your vehicle is placarded, you must stop _______ feet before the nearest rail at a railroad crossing.
- A hazard class name or ID number may not be used to describe
- If hazardous material is spilling from your vehicle, do not move your vehicle
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