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  • 0  (6 mistakes allowed to pass)

Free NJ CDL Diagnostic Test 2025

Average pass rate for CDL tests in New Jersey: 63%.
Average pass rate for this test: 36%.
Hard
5 min
Score distribution:
90-100=>6%
80-89=>0%
70-79=>0%
60-69=>15%
<60%=>79%
Avg. first-try score: 50%

To get a rough idea of how much you know about commercial driving rules in New Jersey, try our NJ CDL diagnostic test. It contains 30 multiple-choice questions on a variety of topics in commercial driving: air brakes, hazardous materials, buses, combination vehicles, and tanker trucks. This test will help you quickly identify gaps in your knowledge of commercial driving, which will be especially useful if you’re just starting to prepare for the CDL knowledge exams. Each practice question includes a picture and has four possible answers. Choose the most complete and correct answer for each question. Each question also comes with an optional hint if you need it and an explanation of the correct answer. Try our CDL diagnostic test and see whether you are ready for the real thing. Good luck, and drive safely!

Free NJ CDL Diagnostic Test 2025
Commercial Driver's License
Based on the official NJ CDL HandbookHandbook‑based (2025) + exam‑taker feedback
20 NJ students practicing now
•202completed 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

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the New Jersey MVC changes its handbook or website information.

Official sources we check: New Jersey CDL Handbook (2025 edition), New Jersey MVC website

How to use this practice test

  1. Start here. One of 4 free New Jersey tests. ~5 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 MVC permit test: What to expect?

The New Jersey permit test has 50 questions. You must get 40 correct (80%) to pass.
  • Where: Any New Jersey MVC office (find locations)
  • Bring: ID + SSN + residency proof + permit/license fee (see checklist)
  • If you fail: Retake in 7 days.
  • Commonly missed: legal blood alcohol limits and DUI rules, road sign recognition (warning, regulatory, and guide signs).
  • Ready to schedule? Book your NJ MVC appointment

Real New Jersey drivers who passed first try

Verified student reviews • Shared with permission

Passed my CDL Knowledge test in Under 10 Minutes – This Course Really Works.
I'm a 59-year-old male and recently took the CDL course to help me pass the CDL knowledge test and the passenger endorsement test in New Jersey. Thanks to the well-constructed and easy-to-follow modules, I passed the test in under 10 minutes! One of the most helpful features was the Question Marathon. It allowed me to zero in on the questions I struggled with the most, helping me focus my study time where it really mattered. Repeating those key areas made all the difference when test day came. The test simulation was also incredibly useful. It gave me a real feel for what the actual exam would be like, reducing my anxiety and boosting my confidence. By the time I sat for the real test, I felt fully prepared. I highly recommend this course to anyone looking for an effective, no-nonsense way to study and earn their commercial license.
O
A++ program. passed hazmat endorsment at nj dmv with.
It was very informative and easy to follow program. Studied on down time while trucking. Would use again and recommend. My eldt for hazmat was sent instantly.-
A
Excellent way to prepare for the CDL.
Excellent way to prepare for the CDL tests in New Jersey. I easily passed them all on the first try, CDL-A Basic Knowledge, Combination Vehicle, Air Brake, Hazmat, Tanker, and Double-Triple. I'd recommend this course to anyone who wants to prepare quickly and easily.
R
Class B license.
I needed to get a Class B license to drive my motor home. I failed my knowledge test. After a week or so of taking practice test, I aced the DMV knowledge test
MW
This site is the truth!
If you want to pass trust this site! I don’t need to pump it up, if you have already fail the test and need help this site will help you pass no doubt. IAM now a CDL A With MY Triple Doubles Tanker AND Hazmat ENDORSEMENTS.
N

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

Driver’s Ed is - nobody wants to set foot inside the MVC. 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.