- Updated for January 2025
- Based on 2025 MD commercial driver's license manual
Free Maryland CDL HazMat Practice Test 2025
From the Appalachian Mountains to the west to the Chesapeake Bay and flat plains to the east, you experience steep mountainous grades and metropolitan cities, seeing all sorts of sights in the great state of Maryland. We are delighted that you are considering adding the Hazardous Materials (Hazmat) endorsement to your Commercial Driver’s License (CDL). You obviously want to add marketability and a potential increase in earnings to your career. The Hazmat endorsement is the key to legally transporting materials that the U.S. government has deemed hazardous. The materials unlocked by the endorsement for transport range from explosives and certain types of fuel to industrial chemicals, radioactive materials and infectious substances. “Explosives?!” Yes, explosives! That’s why the most important objective of this endorsement process is to ensure safety.
The minimum age for the Hazmat endorsement in the Old Line State is 21 (this is true at the national level, per federal law). To add this endorsement, you’ll need to pass a Transportation Security Administration (TSA) fingerprinting and background check and the MVA knowledge test. The knowledge test covers federal regulations, substance handling, and other topics. Maryland’s knowledge test is made up of 30 questions and must be passed with a score of at least 80% (Maryland CDL Handbook 2025).
Let’s get back to the increased opportunities available. In Maryland, hazardous materials requiring a Hazmat endorsement include chemicals used in agriculture and manufacturing, gasoline, propane, hazardous waste, medical gasses (due to the state’s large healthcare industry), and materials associated with the chemical and defense industries. Companies you’ve heard of requiring the endorsement for many of their cargo hauls include Lockheed Martin (Bethesda), Marriott International (Bethesda), and Baltimore Gas and Electric. Amazing, huh? Now check out how we’ve eased the process.
We have specifically designed our online MVA Maryland CDL Hazmat Endorsement practice tests to resemble the official MVA test and avoid the overwhelming amount of information you’ll find online. Additionally, if you get an answer wrong, we provide an explanation immediately (instead of at the end of the test). First, apply for your fingerprinting and background check. This response can take weeks, so use that time to study with our practice tests. When the results are in, and you feel prepared, visit the MVA with the necessary documents, pay the 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 MD MVA exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- What are the major differences between cargo tanks and portable tanks?
- If you are carrying Division 1.2 or 1.3 materials, how far away must you park from a bridge, tunnel, or building?
- Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
- A placarded vehicle must carry a fire extinguisher with a minimum rating of
- A safe haven is
- What are the two main places where the hazardous material identification number appears?
- Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
- 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?
- The Emergency Response Guidebook (ERG)
- Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses?
- How often should you check the tires on a placarded trailer that has dual tires?
- Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
- When shippers package the material, they are trying to
- In what location must you keep your shipping papers that describe any hazardous materials?
- What is a technical name?
- Cargo tanks are
- Which of the following materials are acceptable floor liners for moving Division 1.1 or 1.2 materials?
- What is the purpose of a driver placarding his or her vehicle?
- 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?
- You must NEVER smoke or perform any activity involving fire within 25 feet of
- What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
- To determine if you need to use placards, which of the following is NOT something you need to know?
- Which of the following is NOT an acceptable type of marking for hazardous materials?
- 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 are necessary qualifications for non-bulk packaging?
- You may not park a vehicle carrying explosives within ____ feet of an open fire.
- A hazard class name or ID number may not be used to describe
- A truck carrying explosives has collided with another vehicle. You should not pull them apart until
- Division 1.1 or 1.2 explosives must not be transported in a combination vehicle if the vehicle includes
- Foodstuffs for animal or human consumption must not be loaded in the same cargo space with
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