New Jersey · CDL

New Jersey CDL Practice Test

The New Jersey CDL knowledge test is administered by New Jersey Motor Vehicle Commission. This free practice test covers the 10 areas the New Jersey Commercial Driver's License Manual teaches, from new jersey cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, with 100 questions written for New Jersey and every answer explained. Pick 25, 50, or 100 questions and start; there is no sign-up.

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Take the New Jersey CDL practice test

The New Jersey bank holds 100 questions written for the New Jersey Commercial Driver's License Manual (March 2025 cover; July 2017 instructional section footers), 1 of them illustrated with a sign, signal, marking, or road scene. Choose a Quick check of 25, a Practice run of 50, or the Full challenge of 100 on the next screen, then choose coaching mode, which explains every answer as you go, or exam mode, which holds the explanations until the end and still shows your running score. It is free, there is no sign-up, and a test in progress is saved on this device.

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Sample questions

Six questions from the New Jersey bank, with the rule behind each answer

Sample 1 · New Jersey Cdl Classes Permits Testing And Driver Qualifications

A port tractor and chassis have a 32,400-pound combined rating, and the chassis is rated at 12,100 pounds. Which CDL class is required?

  1. Class A, because the combination reaches 26,001 pounds and its towed unit exceeds 10,000 poundsCorrect
  2. Class B, because an intermodal chassis is never treated as a towed vehicle
  3. Class C, because the tractor carries no passengers
  4. No CDL, because port combinations are classified only after they reach 50,000 pounds

Why: Class A, because the combination reaches 26,001 pounds and its towed unit exceeds 10,000 pounds fits the conditions in the question. Class A covers a combination rated at least 26,001 pounds when the towed vehicle or vehicles have a gross vehicle weight rating above 10,000 pounds.

Sample 2 · Speed Space Hazards Weather And Railroad Crossings

A motorcycle appears tiny in a truck's convex mirror before a merge. Which fact should guide the driver's gap decision?

  1. The motorcycle is closer than its small, distant appearance suggestsCorrect
  2. Convex mirrors make nearby traffic look larger and closer than it is
  3. Object size in a convex mirror gives an exact measurement of distance
  4. The driver should stop scanning ahead and watch that mirror continuously

Why: The motorcycle is closer than its small, distant appearance suggests fits the conditions in the question. Mirror checks should be brief, and convex mirrors require judgment because they make objects appear smaller and farther away than they are.

Sample 3 · Cargo Inspection Weight Balance And Securement

Dock workers load a trailer, close its doors, and hand the seal to the driver. Who is accountable for safe cargo condition on the road?

  1. The driver remains responsible for the load and its securementCorrect
  2. The dock workers alone, because a seal eliminates driver responsibility
  3. The first motorist who notices the trailer
  4. The receiver, beginning only after the cargo has been unloaded

Why: The driver remains responsible for the load and its securement fits the conditions in the question. Even when another person loads the vehicle, the driver remains responsible for inspection, overload and balance recognition, securement, clear visibility, and access to emergency equipment.

Sample 4 · Passenger Vehicle Inspection Loading And Operation

A replacement bus driver reviews a report noting a defective door. What evidence is needed before the bus is accepted?

  1. The door opened once, which automatically cancels every listed defect
  2. A passenger says the door looked acceptable from the sidewalk
  3. The defect was repaired or a qualified determination says repair was unnecessary, with the required driver sign-offCorrect
  4. The previous driver wrote the report, so the replacement driver must ignore it

Why: The defect was repaired or a qualified determination says repair was unnecessary, with the required driver sign-off fits the conditions in the question. A bus driver signs the previous driver's inspection report only after listed defects have been certified as repaired or certified as not requiring repair.

Sample 5 · Combination Vehicle Control Coupling And Inspection

A semitrailer receives several dense printing presses. Which loading position improves combination stability?

  1. At the uppermost rear corner
  2. Hanging freely from the roof structure
  3. Low and near the trailer's lateral centerCorrect
  4. High against one sidewall

Why: Low and near the trailer's lateral center fits the conditions in the question. Combination cargo should be kept low, centered, and distributed because a high or side-biased center of gravity increases rollover risk.

Sample 6 · Hazardous Materials And School Bus Safety

A shipper presents a leaking hazmat package with incomplete papers. Which responsibility belongs to the driver?

  1. Hide the damage behind another package and leave the paperwork incomplete
  2. Accept it because the shipper removes all driver responsibility
  3. Refuse the shipment until the package, description, markings, and required placards are properCorrect
  4. Load it and wait until delivery to mention the leak

Why: Refuse the shipment until the package, description, markings, and required placards are proper fits the conditions in the question. The hazardous-material driver rejects leaking or improperly prepared packages, maintains required placards and papers, and transports the shipment safely after shipper and carrier checks.

What is on the test

The 10 topics the New Jersey CDL practice test covers

These are New Jersey's own topic areas, from new jersey cdl classes permits testing and driver qualifications to hazardous materials and school bus safety, each with 10 questions. Under each one are two questions from the bank, shown without their answers; the practice test explains every one of them.

  1. New Jersey Cdl Classes Permits Testing And Driver Qualifications10 questions
    • A bucket truck is rated at 28,200 pounds and tows an 8,900-pound compressor. How is this configuration grouped?
    • A minibus below the Class A and B weight thresholds is manufactured for 20 occupants including its operator. Which category applies?
  2. Vehicle Inspection Control Visibility And Communication10 questions
    • A driver discovers a loose steering linkage before leaving the depot. Why is the discovery valuable?
    • A gauge drifts out of range while the driver hears a hiss and smells hot material. What should those observations mean?
  3. Speed Space Hazards Weather And Railroad Crossings10 questions
    • What signal pattern gives surrounding traffic a clear message during a lane change?
    • The illustration shows a truck beginning to hydroplane on a rain-covered two-way road. Which adjustment best protects control?
  4. Emergencies Abs Skids Crashes Fires And Driver Fitness10 questions
    • A disabled car suddenly blocks the lane, but a narrow clear path remains. How should the truck be steered around it?
    • During a controlled-braking stop without ABS, what must the driver prevent?
  5. Cargo Inspection Weight Balance And Securement10 questions
    • A vehicle departs with a new load. At what point is its first trip reinspection due?
    • What recurring events require later checks of cargo and securement?
  6. Passenger Vehicle Inspection Loading And Operation10 questions
    • An emergency door is unlatched and an exterior access panel hangs open during the bus walkaround. What is the remedy?
    • A catering cart occupies an aisle and prevents full access to an exit. Is the passenger compartment ready?
  7. Air Brake Components Inspection And Use10 questions
    • What are the three functional parts of an air-brake system?
    • Which component decides when the compressor resumes pumping and when it stops at higher pressure?
  8. Combination Vehicle Control Coupling And Inspection10 questions
    • What explains why a small tractor steering input can become a large swing at the last trailer?
    • A bobtail tractor is light over its drive axle on a wet road. What handling limitation should the driver expect?
  9. Doubles Triples And Tank Vehicle Operation10 questions
    • In a triple, which trailer experiences the greatest crack-the-whip effect after an abrupt lane move?
    • A double consists of a heavy loaded trailer and a light empty one. Which order is preferred?
  10. Hazardous Materials And School Bus Safety10 questions
    • While driving a placarded vehicle, how must shipping papers be positioned?
    • Which sequence identifies the core hazmat basic description?
How to prepare

A study plan for the New Jersey CDL knowledge test

1

Find out where you stand

Take a Quick check of 25 in coaching mode. Read each explanation, including the ones you got right; it tells you the rule New Jersey tests, not just the answer.

2

Study the topics you missed

Your account's Study tab ranks the 10 topics by your results. Read that chapter of the New Jersey Commercial Driver's License Manual, then take another Quick check to confirm the gap has closed.

3

Rehearse the real thing

Take the Full challenge of 100 in exam mode. Aim for 80 percent or better twice in a row; at that point you are answering from the rules, not from memory of the questions.

Questions

New Jersey CDL practice test questions

Is this the official New Jersey CDL knowledge test?

No. DMV Exam Pass is an independent study service and is not affiliated with New Jersey Motor Vehicle Commission. The questions are written in the style of the exam to prepare you for it; the official test is taken with the agency.

What does the New Jersey CDL practice test cover?

The 100 questions are spread evenly across 10 topics: New Jersey Cdl Classes Permits Testing And Driver Qualifications, Vehicle Inspection Control Visibility And Communication, Speed Space Hazards Weather And Railroad Crossings, Emergencies Abs Skids Crashes Fires And Driver Fitness, Cargo Inspection Weight Balance And Securement, Passenger Vehicle Inspection Loading And Operation, Air Brake Components Inspection And Use, Combination Vehicle Control Coupling And Inspection, Doubles Triples And Tank Vehicle Operation, and Hazardous Materials And School Bus Safety. Every test you take draws from all of them, so a weak area shows up quickly.

How many questions are in the practice test, and how long does it take?

The New Jersey bank holds 100 questions. A Quick check of 25 takes about ten minutes, a Practice run of 50 about twenty, and the Full challenge of 100 about forty. You can pause any time.

Are these the real questions from the New Jersey exam?

No. Nobody outside the agency has the real questions, and we do not use, claim, or advertise leaked or exact exam questions. These are independently written questions that test the same rules, so what you learn transfers to whatever the real test asks.

Which handbook should I study for the New Jersey CDL knowledge test?

The New Jersey Commercial Driver's License Manual (March 2025 cover; July 2017 instructional section footers), published by New Jersey Motor Vehicle Commission. Every question here is written for it, and each explanation names the rule, so when you miss a question you know which chapter to read.

What is the difference between coaching mode and exam mode?

Coaching mode shows whether each answer was right, and why, before you move on; it is for learning. Exam mode holds the explanations and the correct choices until the end and still shows your running score; it is for checking readiness. Both draw from the same bank, and scoring happens on our servers, so no answer key is loaded in your browser.

Does the practice test include road signs and pictures?

Yes. 1 of the 100 questions are illustrated with a sign, signal, marking, or road scene, the way the CDL knowledge test presents them.

Is the New Jersey practice test free, and do I need an account?

It is free, with no sign-up. An optional account saves your progress across devices and shows which topics need work.

Can I pause and come back later?

Yes. A test in progress is saved on this device and offered again when you return. With an account, it is saved to your account as well, so you can continue on another device.

What score should I aim for before test day?

Aim for 80 percent or better on a Full challenge in exam mode, more than once. The official passing score is set by the agency; scoring consistently above 80 here means you are answering from the rules rather than from luck.