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OK CDL Combination Vehicles Practice Test 4 2025

Average pass rate for CDL tests in Oklahoma: 60%.
Average pass rate for this test: 60%.
Moderate
10 min
Score distribution:
90-100=>0%
80-89=>50%
70-79=>0%
60-69=>50%
<60%=>0%
Avg. first-try score: 60%

Are you looking for a tool that can help you pass your theory exams? Our practice tests have been designed to significantly boost your learning potential and make you a better commercial driver. You can access them on any compatible device that is connected to the internet. The practice test that you’re about to take is the fourth in our Oklahoma CDL Combination Vehicles Practice Tests series. Consisting of multiple-choice questions, this intuitive tool accurately reflects the latest updates brought by DPS rules or state law. We frequently update it (most recently for December 2025), so you will always practice with the latest version.

The Commercial Driver’s License Manual (Oklahoma CDL Handbook 2025) is an official resource published by the DPS. Section 6 teaches you everything you need to know to safely operate combination vehicles. You will learn how to prevent skids and jackknives, coupling and uncoupling procedures, and pre-trip inspections specific to combination vehicles. We recommend reading this section multiple times during your learning phase.

OK CDL Combination Vehicles Practice Test 4 2025
Commercial Driver's License
Based on the official OK CDL HandbookHandbook‑based (2025) + exam‑taker feedback
8 OK students practicing now
154completed today

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 Oklahoma tests. ~10 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 DPS permit test: What to expect?

The Oklahoma permit test has 20 questions. You must get 16 correct (80%) to pass.

About the Oklahoma CDL

It is perfectly normal to make mistakes, especially during your first few attempts. Your personal Challenge Bank™ automatically stores questions you get wrong so that you can practice with them later. Please visit this section at the end of your study sessions to review your mistakes and learn from them. The bookmark icon allows premium users to add any question to their Challenge Bank.

Many of our practice tests are untimed, including this one. Rushing will only cause you to make more mistakes, so you should finish each practice session at your own pace. This practice test is available in multiple languages. You can select yours from the test settings menu located in the top-right corner of the page.

A Class A CDL opens up plenty of career opportunities. If you plan to drive combination vehicles, you must understand the responsibilities that come with this job. Use this practice test for several weeks and after you’ve aced it, you can continue your training with our Free Oklahoma CDL Permit Practice Test.

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

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

An official & trusted partner in driver education

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.