FREE APP FOR NC, SC, AND GA

FREE CDL PERMIT
PRACTICE TEST

TransTech’s free CDL Prep app helps students study for the CDL permit test before training starts! The app has mock exams, practice questions for the North Carolina, South Carolina, and Georgia tests, a readiness score, and offline studying. Download the free app and start studying today!

On a computer? Study in your browser
  • Free, no ads
  • Based on your state's CDL manual
  • Works offline
Two cell phones showing the TransTech permit prep app

WHAT'S ON THE CDL PERMIT TEST?

The CDL permit test is a written knowledge test taken in person at the state DMV. Every driver seeking a Class A CDL must take the CDL permit test. Class A applicants also take the Combination Vehicles test, and drivers training in trucks with air brakes take the Air Brakes test. Applicants must answer at least 80% of the questions correctly on each test to pass.

Want a full study plan? Read our guide on how to pass the CDL permit test, with a schedule, tools, and test-day tips.

Test Who takes it What it covers Questions
General Knowledge All CDL applicants Vehicle inspection, basic control, shifting, seeing and space around the truck, speed, hazards, bad weather, and cargo safety 50
Combination Vehicles Class A applicants Coupling and uncoupling, rollover risk, trailer skids, and combination vehicle air brakes 20
Air Brakes Drivers of trucks with air brakes Air brake parts, dual air systems, air brake inspection, and safe braking 25
Endorsements (optional) Drivers adding tanker, hazmat, doubles/triples, or passenger Rules for that type of vehicle or cargo Varies

Inside the TransTech CDL Prep App

Permit readiness score on TransTech permit prep app

SEE WHEN YOU'RE READY

Correct answer chosen on on TransTech permit prep app

LEARN WHY, NOT JUST WHAT

Timed mock exam on TransTech permit prep app

TAKE A TIMED MOCK EXAM

Practice by section

You can pick a specific weak point in your knowledge, such as air brakes, combination vehicles, or general knowledge, and study it with flashcards and quizzes.

Explained answers

When you answer a question, you get an explanation of why it was right or wrong, not just a “correct” or “wrong” response.

Practice tests

You can take practice tests that cover the same topics as the real permit test, timed to make sure you’ll be able to take your exam within the real time limit.

Weak-area review

With a record of the questions you’ve struggled with, the app can help you round out any weak point

Readiness score

A score that tracks progress and shows when a student is ready for the real test.

Offline studying

Questions are downloadable, so you can study truly anywhere you can bring your phone, no WIFI or cell service needed.

CDL Permit Test Practice Questions

The five questions below come from the General Knowledge test, which every state uses. Students can try them here, then find hundreds more in the free app.

 

Results

#1. You are considering whether you need a CDL to drive a particular vehicle. Which gross vehicle weight rating (GVWR) triggers the federal CDL requirement?

#2. A CDL is required to operate a passenger vehicle designed to transport how many people (including the driver)?

#3. What is the minimum age required to drive a commercial motor vehicle across state lines (interstate) or to transport hazardous materials?

#4. During a pre-trip inspection, what is the minimum acceptable tread depth on the steer tires?

#5. What is the maximum legal weight on a single axle of a commercial vehicle?

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Finish

How to Download and Use the CDL Prep App

  1. Step 1

    Open the Apple App Store on an iPhone or Google Play on an Android phone.

  2. Step 2

    Search for “TransTech CDL Prep” and tap Get or Install.

  3. Step 3

    Open the app and pick the state where the permit test will be taken.

  4. Step 4

    Start with practice questions, then take a mock exam.

  5. Step 5

    Check the readiness score. Once the score shows the student is ready, schedule the permit test with the state DMV

Ready to Start CDL Training?

After passing the permit test, the next step is CDL training. TransTech offers Class A CDL and Class B CDL programs at 14+ locations in North Carolina, South Carolina, and Georgia, with new classes starting every Monday. Students can fill out the form to get class dates, program details, and payment options.

GET MORE INFO!

CDL PERMIT TEST FAQ

Can I take a free practice test before I get my Commercial Learner’s Permit (CLP)?

Yes. TransTech’s free app has practice tests for North Carolina, South Carolina, and Georgia, and students can download it now to start preparing.

What’s the Passing Score for a CDL Permit Test?

Applicants must answer at least 80% of the questions correctly on each part of the CDL permit test. On the 50-question General Knowledge test, that means at least 40 correct answers.

How long does a CLP last?

A CLP is valid from 180 days to a full year, depending on which state issued the CLP. Some states have options to renew the CLP upon expiration; drivers should check their state’s rules before taking their CLP knowledge tests.

Can a person take the CDL permit test online?

No. The CDL permit test is taken in person at the state DMV, but students can practice online and in the app before test day.

Are the questions in the app the same as the real test?

No. The real test questions aren’t public, but the app’s questions are based on each state’s official CDL manual, which the real test also uses.

How old does a person need to be to get a CLP?

A person must be at least 18 years old to get a CLP. Drivers must be 21 or older to haul freight across state lines. See the exact rules for North Carolina Permit, South Carolina Permit, and Georgia Permit.

What should a student bring to the DMV for the permit test?

Most DMVs ask for a valid driver’s license, proof of identity and residency, a Social Security number, and a DOT medical card. Each state’s CDL requirements page lists the exact documents. See North Carolina documents, South Carolina documents, or Georgia documents.

What happens if a student fails the CDL permit test?

Most states let applicants retake the test, but some require a waiting period or a new fee. Students should check with their state DMV for retake rules.

How long after getting a CLP can a student take the CDL skills test?

Federal rules require students to hold a CLP for at least 14 days before taking the skills test. Most students use that time for behind-the-wheel training.

Reviewed by Tyrel Sulzer, Co-CEO and COO of TransTech. Last updated October 19, 2026.