Back to results
View all tests
4.64/5
25 votes
Click a star to add your vote
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
  • 0 Incorrect (6 allowed to pass)
  • 0 Correct
Restart
 
 
 
 
 
Advertisement
Back to Program Home
  • Updated for May 2025
  • Based on 2025 OR commercial driver's license manual

Free Oregon CDL HazMat Endorsement Practice Test 2025

If you’ve already obtained your Commercial Driver’s License (CDL), you are likely already familiar with transporting cargo through Oregon’s unique terrain. Perhaps you’ve experienced the winding roads of the Cascade Mountain Range and coastal mountains and the winds and dust storms of the high desert areas, but you’ve also witnessed breathtaking sights like the Columbia River Gorge and urban living in Salem, Eugene, and Portland. Adding the Hazardous Materials (Hazmat) endorsement to your CDL is a lucrative way to increase your job opportunities and may result in higher pay, as organizations are often willing to pay more for the valuable skills of an endorsement holder!

The Hazmat endorsement enables drivers to transport materials classified as hazardous by the U.S. government. In the Beaver State, hazardous materials transported include gasoline, biodiesel, industrial chemicals, and agricultural chemicals like pesticides. Some key organizations in Oregon, such as Chevron Corporation in Portland (petroleum products distribution), Schnitzer Steel Industries also in Portland (scrap metal processing and chemical transport), and Intel in Hillsboro (uses industrial chemicals in its manufacturing of semiconductors) rely on drivers with this endorsement.

Several steps exist to ensure proper training of this select group of drivers. The process starts with the fingerprinting and background check mandated by the Transportation Security Administration (TSA). Results from TSA can take weeks, so you’ll want to study and practice in the meantime for the second step: the DMV knowledge test. This test covers federal regulations, substance handling, packaging, quantity limits, and transport configurations for hazardous materials. With a score of 80% on Oregon’s 30-question knowledge test, you can pass the test and move closer to unlocking new opportunities (Oregon CDL Handbook 2025).

Our online Oregon DMV Hazmat Endorsement practice tests are designed to take the overwhelming aspects of the study process out of the picture. We have designed them to avoid any unnecessary information and streamlined the content to resemble what you will face on the official DMV test. Additionally, you will receive immediate feedback on each response so you learn as you go without waiting until the end for corrections. Ready to roll? Once you receive your TSA results and feel prepared, you’ll visit the DMV with the necessary documents, pay the fees, pass the test, and start your next career level.

Pass the first time with Premium
OR commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

What you need to know

4.64 out of 5 • 25 votes
7 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual OR DMV exam

30

questions

24

correct answers to pass

80%

passing score

List of questions (classic view)

  1. What is a technical name?
  2. A placarded vehicle must carry a fire extinguisher with a minimum rating of
  3. Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
  4. 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?
  5. If you are carrying Division 1.2 or 1.3 materials, how far away must you park from a bridge, tunnel, or building?
  6. 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?
  7. Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
  8. In what location must you keep your shipping papers that describe any hazardous materials?
  9. The Emergency Response Guidebook (ERG)
  10. Which of the following materials are acceptable floor liners for transporting Division 1.1 or 1.2 materials?
  11. You must NEVER smoke or perform any activity involving fire within 25 feet of
  12. Where are the two main places that the hazardous material identification number appears?
  13. What is the purpose of a driver placarding his or her vehicle?
  14. A safe haven is
  15. When shippers package the material, they are trying to
  16. What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
  17. If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
  18. How often should you check the tires on a placarded trailer that has dual tires?
  19. Which of the following are necessary qualifications for non-bulk packaging?
  20. Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
  21. What are the major differences between cargo tanks and portable tanks?
  22. Cargo tanks are
  23. To determine if you need to use placards, you do NOT need to know
  24. Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
  25. Which of the following is NOT an acceptable type of marking for hazardous materials?
  26. Which of the following hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
  27. A vehicle placarded for hazardous materials must have placards on ____ sides.
  28. NO ONE may smoke within 25 feet of any vehicle that contains explosives, oxidizers, or
  29. Identification numbers are preceded by the letters "UN" or "NA." The letters "NA" are associated with proper shipping names that are used where?
  30. If you are carrying a total of less than 200 pounds of the hazard classes in Placard Table 1,
Are you in another state?

Your go-to, trusted source

Experience the Driving-Tests difference
Since our foundation in 2010, Driving-Tests.org has led the way in online driver's education, with over a decade of experience. Our dedicated experts, bringing together more than 50 years of collective expertise, have established us as the largest non-governmental organization in the U.S. solely focused on driver education. We go beyond the official manuals, offering unique interactive experiences and support like audio guides and an AI Assistant, to cater to different learning styles and needs.
Helping hundreds of thousands to ace their tests, our resources have earned a 4.7-star rating from over 14,500 reviews. Our goal is to make your path to becoming a confident driver as straightforward and effective as possible.
 (6  allowed to pass)
Restart test
Ask AI Coach
Ask DMV Genie AI
new
    Calculating your test results Your test results are ready
    Pass Your CDL Exam the First Time - Guaranteed

    Before you see your results, discover how CDL Premium helps you:

    • Real CDL Exam-Like Oregon Questions
      Questions match official CDL tests
    • Official FMCSA-approved
      ELDT Certification included
    • 99.06% Verified Pass Rate vs. 49% Average
      Proven success, specialized for CDL drivers

    Trusted by 1.15 Million drivers

    Secure Your CDL & ELDT Certification Continue to my results
    Opens in a new tab — your results are saved
    Try Driving-Tests Premium

    Pass the knowledge test the first time, guaranteed.