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  • Updated for December 2024
  • Based on 2024 OK commercial driver's license manual

Oklahoma CDL HazMat Practice Test 4 2024

The HazMat endorsement is required by the states for drivers of commercial vehicles. The purpose of the HazMat endorsement is to ensure that drivers are aware of the hazards associated with the transportation of hazardous materials. When you need a job that requires the HazMat endorsement, preparing for the CDL knowledge exam is hard. The Oklahoma CDL manual is overwhelming, filled with information that’s often confusing and hard to remember. You need something where you could supplement the dry information with exam-like practice. This HazMat practice test will help you prepare. We’ve designed it to be the tool that will help you pass the official exam with ease -- by covering the same materials that the real exam is based upon. You’ll be getting instant feedback after each question so you’ll know why every answer is correct. The answers are explained with easy-to-follow language. You’ll study at your own pace, and even review specific questions if they give you problems. Good luck!

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  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Oklahoma

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

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About this test

5 out of 5 • 1 votes
9 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.

What to expect on the actual OK SOK exam

30

questions

24

correct answers to pass

80%

passing score

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