CDL DOUBLES TRIPLES PRACTICE TEST NEW JERSEY

View instructions
Safely pulling double and triple trailers requires knowledge and skill. If you want to pull double or triple trailers, you must add the Doubles/Triples (T) endorsement to your Class A CDL. The New Jersey doubles triples test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The NJ CDL doubles triples test covers the following sections of the New Jersey CDL Manual: Driving Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Combination Vehicles, Doubles and Triples. Take this NJ CDL practice test now to prepare for the actual test!
1. How should you brake if your vehicle loses ABS?
Brake as you always have.
Stay off the Brake
Step on and off the brake pedal several times
Pump the brake repeatedly
2. If your ABS malfunctions:
the parking brakes will not work.
you still have normal brake functions.
you should immediately come to a complete stop.
the service brake will not work.
3. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.
10, 100 and 200 feet
5, 50 and 500 feet
3, 15 and 45 feet
5, 25 and 50 feet
4. Many large vehicles have convex (curved, "spot, "fisheye") mirrors. Convex mirrors:
are illegal in most states.
make things look smaller and farther away than they really are.
misrepresent reality by showing a larger area than flat mirrors.
None of the above.
5. Exhaust system parts should NOT:
rub against tires.
be loose.
rub against fuel system parts.
All of the above.
6. Air pressure should build up in a single air system, within about:
10 minutes.
1 minute.
15 minutes.
3 minutes.
7. Watch out for black ice:
any time the temperature is below freezing and the road looks wet.
right after it starts to rain.
when the temperature is above freezing and the road is dry.
when it is snowing.
8. Before operating the vehicle, the driver should:
review the last vehicle inspection report.
should not review the vehicle inspection report and immediately try to find any vehicle defects.
rely on the last vehicle inspection and skip the pre-trip inspection.
None of the above.
9. When driving a 50-foot truck at 40 mph, your minimum following distance should be:
5 seconds
4 seconds
6 seconds
8 seconds
10. The tire load for each tire is stated:
on the inside of the tire.
on the side of the tire.
on the tread of the tire.
on the vehicle's operator manual.
 
Page 1 of 2
Next page
NOT SURE YOU WILL PASS? GET CDL PREMIUM NOW! - Learn More

Frequently Asked Questions

New Jersey residents who have never had a class D driver license must follow the age requirements of the Graduated Driver License (GDL) program. There are three options:
  1. If you are 16 and enrolled in an approved behind-the-wheel driver training course, you can apply for a special learner permit. When you reach 17, you are ready to apply for a probationary license after practicing for at least six months. After one year of unsupervised driving, you can get a basic driver license at 18.
  2. If you are not enrolled in a driver course, you can obtain an examination permit at least at 17 years old. After six months of supervising driving, you can get a probationary license. After one year of unsupervised driving, you can get a basic driver license at 18.
  3. If you are 21 years old, after obtaining the permit and three months of supervising driving, you can get a probationary license. After one year of unsupervised driving, you can get a basic driver license.


If you are enrolled in a driver education class, you can schedule your DMV written test at the driving school. Alternatively, you can purchase an examination permit at a New Jersey driver testing center and then make an appointment for the knowledge test.

To complete the 6 Point ID Verification by presenting documents that prove your age, identity, and legal presence in the United States,  you must provide the following documents:
  • One primary document and one secondary document.
  • One proof of NJ address.
  • Proof of SSN or ITIN (Individual Taxpayer Identification Number) or a signed affidavit.
  • Proof of your legal presence in the US (for non-citizen applicants).
Use this guide to ensure you have the necessary documentation.

The DMV written tests in New Jersey are available in multiple languages: English, Arabic, Chinese (Mandarin), French, Spanish, Korean, Polish, Portuguese, Russian, Japanese, Hindi, Albanian, and Turkish. Additionally, oral tests are offered in both English and Spanish. If the test is not provided in your native language, or if you are deaf or hard of hearing, you may request an interpreter approved by the Motor Vehicle Commission at least two weeks before taking the exam. Interpreter's fees will be paid by the Motor Vehicle Commission (MVC).
The DMV written test covers road rules, safe driving practices, and road signs. Studying the official New Jersey Driver’s Handbook is the first step to pass the exam because it contains all of this information. Once you've read it, you can take our free practice tests to test your preparation!

The DMV written test in New Jersey consists of 50 questions covering topics such as traffic laws, vehicle handling, recognizing road signs, etc. If you have carefully read the manual and taken various practice tests, you should be able to answer each question without any problem.

To pass the DMV written test, you need a score of 80% or higher. You should get at least 40 questions right, and you're allowed to miss up to 10 questions out of the total 50. Stay focused and take the time to read the questions carefully.

If you have a special learner permit or an examination permit, these are the specific restrictions:
  • You must be accompanied in the front seat by a driver aged 21 years old or older with a valid license for at least 3 years.
  • Driving is prohibited between 11:01 p.m. and 5:00 a.m.
  • Using cell phones or electronic devices is forbidden.
  • You can transport only siblings and one additional passenger (unless accompanied by a parent/guardian for examination permit holders).
  • All occupants must wear seat belts.
  • You must display decals on license plates.
If you have a probationary driver license, these are the specific restrictions:
  • Driving alone is prohibited between 11:01 p.m. and 5:00 a.m.
  • Using cell phones or electronic devices is forbidden.
  • You can transport only siblings and one additional passenger, unless accompanied by a parent/guardian.
  • You must display decals on license plates.
If you are 21 years of age or older, these restrictions do not apply.

The student learner’s permit expires after 2 years, while the examination permit has distinct validity periods: it is valid for 90 days for applicants who don't follow the Graduated Driver License Program and for 2 years for those who adhere to the GDL Program.

If you don't pass your online DMV written test in New Jersey, you'll need to wait for 7 days before trying again. If you find the exam difficult, sign up for DMV Premium, which offers numerous resources and practice tests to improve your preparation.

NJ CDL Doubles Triples Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Share This Online CDL Test
Rate this CDL Doubles Triples Test
4.7 out of 5
based on 394 votes