Practice Test Instructions:
- Choose the best answer and receive instant feedback.
- Click next to go to the next question.
- Check your results at the end.
- Start a new version and keep studying!
Each test contains questions based on information in the official driver's handbook.
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Test your knowledge with this CDL written exam simulation.
Practice with more questions at once to get yourself ready for the real exam.
Restart the test or refresh the page for a new set of questions.
Be sure to study the Tank Vehicles sections (section 8) of the official CDL handbook from your state as you prepare for the real thing.
Need some more practice? Use our Tanker practice test with instant feedback to help you study.
Hereās what you need to know about your official N Endorsement knowledge exam:
- Total Number of Questions: 20 questions.
- Passing Score: 80% or 16 correct answers.
- Number of Questions you can miss: 4 questions.
- CDL Handbook Section to Study: Section 8 – Tank Vehicles
- Tanker Test Required for: CDL drivers who want to operate commercial vehicles designed to transport liquids and gasses.
Learn how to apply for a CDL and find the CDL manual for your state.
Visit your stateās official DMV website for more application information and to make testing appointments.