new jersey
CDL Practice Test


Welcome to the CDL practice test site for New Jersey. Questions from these tests cover rules and regulations in the NJ CDL manual. These questions are written to prepare you for the official NJ CDL test as you look to obtain your New Jersey CDL. You are welcome to take these New Jersey CDL permit practice tests as many times as you like as all of the tests on this site are free. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50 minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin.

1 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

2 / 40

Which trailer is more likely to roll over when pulling 3 trailers?

3 / 40

______is a device that connects the service and emergency air lines between the tractor and trailer.

4 / 40

How should the hand valve be used?

5 / 40

What might happen if you swing wide to the left before you turn right?

6 / 40

Select the true statement in regards to when a bulk tank vehicle stops at an intersection on a slippery surface:

7 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

8 / 40

Select the accurate statement in regards to rolling up the landing gear to complete the coupling process.

9 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

10 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

11 / 40

How should the pintle hook be when backing a dolly under the second trailer?

12 / 40

What does it mean when the safety valve releases air?

13 / 40

When accelerating:

14 / 40

Select the factor that has no effect on how much liquid you can carry:

15 / 40

You can be sure air is supplied to the second trailer by:

16 / 40

If your bus has an emergency exit door, it must:

17 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

18 / 40

The cause of almost half of all truck driver deaths are:

19 / 40

Select how you would check the truck's slack adjusters.

20 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

21 / 40

What is the purpose of a baffle?

22 / 40

Most states require school bus drivers to take a physical examination:

23 / 40

How do you know when your brakes are fading?

24 / 40

This should be cleaned and then adjusted properly while inside the cab.

25 / 40

What do you need to do to supply air to the air tanks of the second trailer?

26 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

27 / 40

Liquid surge affects the handling of a tanker by:

28 / 40

The locking jaws of the kingpin should close around:

29 / 40

What is the stopping distance for a tractor trailer that is traveling at 55 mph on dry pavement?

30 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

31 / 40

Which of the following is a reason to evacuate the school bus?

32 / 40

Select the true statement about dual air brake systems.

33 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

34 / 40

At a railroad crossing, the bus is required to stop at the stop line. If there is no clearly marked stop line, what is the required minimum and maximum stopping distance?

35 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

36 / 40

Which of the following statements about special danger of loading and unloading is true?

37 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

38 / 40

What is the purpose of a driver placarding his or her vehicle?

39 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

40 / 40

Why are you required to take an exam about air brakes?

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CDL Category Practice Tests

CDL Practice Test

How To Get A new jersey Commercial Drivers License

To be eligible for a CDL in New Jersey, applicants must be at least 18 years old to operate within state lines and must be at least 21 to drive a commercial vehicle across state lines. To be eligible to drive a commercial vehicle in New Jersey, applicants must provide verification that they are medically fit to operate a commercial vehicle. New Jersey applicants must pass a vision test and have 20/40 vision in each eye.

All applicants must submit the following documents when they apply for a CDL.

  • (Form MCSA-5876) Medical Examiner’s Certificate
  • CDL Holder Self-Certification Form

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in New Jersey. Applicants must possess a basic New Jersey Class D driver’s license.

New Jersey CDL Endorsements

  • H – Hazmat Vehicles
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Towing a Double or Triple Trailer

Hit the Open Road

new jersey CDL License Test Tips

Every New Jersey CDL applicant must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the New Jersey test, applicants must score 80 percent or higher. There are additional tests for applicants who want to drive specialized commercial vehicles. The New Jersey skills test can be taken 20 days after applicants pass the knowledge test. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans who were discharged within 12 months of completing the CDL application and active military members can have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must show proof of military enlistment or discharge or have operated a motor vehicle equivalent to a commercial motor vehicle in the military within 12 months of the application date. In addition, applicants must possess a valid New Jersey driver’s license and submit an application for a Military Skills Test Waiver that is signed by the commanding officer.

Additional Information

Information on the New Jersey Motor Vehicle Commission

The New Jersey Motor Vehicle Commission provides oversight for the CDL license requirements in New Jersey. To get more information contact them via:


Phone: 609.292.6500


Additional New Jersey CDL Helpful Links

Please use the links below to access more valuable New Jersey CDL testing resources and to learn more about practice driving tests for the state of New Jersey.