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OR CDL Double/Triple Trailers Practice Test 2025

8 min

Taking your OR CDL Double/Triple Trailers endorsement can be unpleasant. Take most of the stress out of the equation by taking the Oregon CDL D/T Trailers practice test. This 20-question practice test closely resembles the official test so you will be able to build up your confidence prior to the day of the actual test. Then, when you finally walk into the DMV, you’ll be ready to take your endorsement test with ease, knowing that you’re ready to get all of the answers correct.

Getting to Know the Practice Test

If you’ve never taken a CDL practice test before, you might not be sure what to expect. First, it’s critical to understand that the questions from the test are taken directly from the 2025 Oregon state CDL manual. That means that each question is specific to your state, just like the ones you’ll find on the official test. When you sit down for actual test at the DMV, you’ll notice that the questions are very similar to the ones that were on the practice test. They might be worded slightly differently, but they contain the same information. That is why this practice test is such a useful tool.

Commercial Driver's License
Based on the official OR CDL HandbookHandbook‑based (2025) + exam‑taker feedback
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Oregon

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Accuracy & authorship

Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Reviewed for legal and handbook accuracy:

Steven Litvintchouk

M.S., Chief Educational Researcher (ACES member)

Last verified for accuracy on

Andrei Zakhareuski, Co-founder & CEO at Driving-Tests.org

Test design and learning experience oversight:

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

How to use this practice test

  1. Start here. One of 4 free Oregon tests. ~8 min. Read explanations as you go.
  2. Cover more ground. All tests have different questions - no repeats.
  3. Finish strong. Try the Exam Simulator for a full-length run.

Why this works

  • Exam-like questions from the current handbook + real test-taker patterns. Explanations cite the manual.
  • AI Assistant explains tricky items in plain language.
  • Performance Insights show your weak topics and what to study next.
  • Challenge Bank™ saves your mistakes for targeted practice.

Actual DMV permit test: What to expect?

The Oregon permit test has 20 questions. You must get 16 correct (80%) to pass.
  • Where: Any Oregon DMV office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake the same day.
  • Commonly missed: right-of-way at intersections, distracted driving and mobile device restrictions.
  • Ready to schedule? Book your OR DMV appointment

About the Oregon CDL

Make Sure You’re Ready

When test day arrives, some people head directly to the DMV. It’s a good idea to take your practice test once more to make sure you’re ready. Those questions will refresh your memory. As you go through the questions, you might realize that you aren’t quite as knowledgeable on a particular subject. Then, you need to take out your CDL manual and study that subject before you head out to take your test. Then, when you finally go through those doors, you will be ready to tackle anything that comes your way. No one will stop you from walking back out the doors with your CDL Double/Triple Trailers endorsement!

If you want to be successful the first time you take your OR CDL Double/Triple Trailers written test, a practice test is the key. With the assistance of a practice test, you won’t have any trouble making it through the questions in the official test. Good luck with your endorsement!

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.

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We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.

A smarter way to study

Challenge Bank™

Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.

AI-powered feedback

Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.

Interactive handbook

Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.