- Updated for January 2025
- Based on 2025 ID commercial driver's license manual
Free Idaho CDL HazMat Practice Test 2025
Permitting you to transport materials the U.S. government has judged hazardous, the Hazardous Materials (Hazmat) endorsement added to your Commercial Driver’s License (CDL) will open a host of new career opportunities and higher income potential. Ensuring your safety as well as protecting the people and environment along your routes is the primary objective of the endorsement process. We’ll also discuss some of the financial benefits in more detail in just a moment!
The minimum age for the Hazmat endorsement is 21 for interstate travel. Idaho, however, is one of the states that allow drivers aged 18–20 the endorsement, but they cannot transport cargo across state lines until they turn 21. All drivers must go through a couple of steps before this endorsement can be added to their CDL. This process includes a background check, fingerprinting, and the DMV knowledge test. The test covers topics like federal regulations, handling and packaging of hazardous materials, allowed quantities, and approved transport configurations. Idaho’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) (Idaho CDL Handbook 2025).
Let’s get back to the potential income increase available with this endorsement. According to the 2025 Idaho CDL manual, the Hazmat endorsement opens up an entire arena of cargo transport options that are not available to non-holders! In Idaho, there are multiple industries with cargo transport that require the Hazmat endorsement, such as agriculture (pesticides and fertilizers), mining (explosives and chemicals), manufacturing (solvents, paints, and cleaning agents), and energy production (petroleum and natural gas). This sounds very lucrative and a little overwhelming, right? It doesn’t have to be. Let’s simplify things a bit.
You’ll quickly find that searching online for study material will return an overwhelming amount of information. Our Idaho DMV Hazmat Endorsement practice tests are strategically designed to zero in on the necessary information for the test and avoid a lot of the extraneous information not needed to pass. Our tests replicate both the structure and content of the official DMV test, both reinforcing the material and getting you very comfortable with the test process. When you feel prepared, you’ll take your necessary documents to the DMV, pay any related fees, and take the official knowledge 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 ID DMV exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- In what location must you keep your shipping papers that describe any hazardous materials?
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- The Emergency Response Guidebook (ERG)
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- 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 is a technical name?
- Which of the following are necessary qualifications for non-bulk packaging?
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
- 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?
- A safe haven is
- Where are the two main places where the hazardous material identification number appears?
- 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?
- How often should you check the tires on a placarded trailer that has dual tires?
- 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 materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
- What is the purpose of a driver placarding his or her vehicle?
- You must NEVER smoke or perform any activity involving fire within 25 feet of
- To determine if you need to use placards, which of the following do you NOT need to know?
- When shippers package the material, they are trying to
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- What are the main differences between a cargo tank and a portable tank?
- Cargo tanks are
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- A vehicle contains 500 pounds each of Division 1.1 explosives and Division 1.2 explosives. You must have
- For the hazard classes in Placard Table 2, you must use placards only if you are transporting a total of
- Identification numbers are preceded by the letters "UN" or "NA." The letters "NA" are associated with proper shipping names that are used where?
- Division 1.1 or 1.2 explosives must not be transported in a combination vehicle if the vehicle includes
- Placards must be at least _______ from all other markings.
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