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- Updated for December 2024
- Based on 2024 NJ commercial driver's license manual
Free New Jersey CDL Combination Practice Test 2024
Here is a free New Jersey CDL Combination practice test! This practice test, one of several we offer, will help you prepare to pass the official Commercial Driver’s License (CDL) Combination Vehicles knowledge test. You must pass this knowledge test to operate combination vehicles, such as semi-trucks and tractor-trailers.
We’re sure that you were advised to study Section 6 (Combination Vehicles) of the official New Jersey Commercial Driver License Manual (New Jersey CDL Handbook 2024) to get ready for the Combination Vehicles knowledge test. This study guide contains all the material on which you’ll be tested. Now that you’ve read it, do you think you can pass the official Combination Vehicles knowledge test? If you feel you could use more help to pass it – well, that’s what we’re here for.
Answering the questions on this Combination practice test will help reinforce what you read in the CDL manual and make the material easier to remember. The practice test is based on the official state CDL manual, just like the official knowledge test. It is up to date as of December, 2024. There are 30 multiple-choice questions and answers to assess your understanding of such topics as combination braking systems, combination driving techniques, coupling, and pre-trip inspections. However, this practice test differs from the official knowledge test in its extra features to help you learn, including a hint and an explanation of the correct answer for each question, and an automated assistant for even more help.
Once you’ve passed all your required tests and have your Class A CDL in hand, you’ll be able to explore all the economic opportunities open to tractor-trailer and semi-truck drivers in New Jersey. The state’s proximity to New York City and Philadelphia, its warehousing and distribution centers, and its seaports create a high demand for truckers. Amazon, Walmart, and Target all have large distribution centers in New Jersey. Port Newark–Elizabeth Marine Terminal is the main container ship port for containerized cargo entering the New York metropolitan area and the northeast United States generally. Truckers pick up containers there for transport to various distribution centers. Finally, the state is home to numerous chemical, pharmaceutical, and refinery industries, all of which employ truckers to deliver equipment and supplies to them and transport their products. (A Hazardous Materials endorsement might come in handy here. Want to pass that official knowledge test? We have Hazardous Materials practice tests too.)
Interstate 95 (known in the state as the New Jersey Turnpike) is the most important north-south truck route on the Eastern Seaboard. Other important truck routes include Interstates 78 (east-west), 80 (east-west), and 295 (north-south); and U.S. 1/U.S. 9 (north-south).
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual NJ MVC exam
questions
correct answers to pass
passing score
List of questions (classic view)
- To drive, how high do you need to raise the landing gear?
- After coupling, how much space should there be between the lower and upper fifth wheel?
- To straighten out a jackknifing trailer, should you apply the trailer hand brake?
- When parking a vehicle that does not have spring brakes, you should use wheel chocks
- To prevent a rollover while driving a combination vehicle, you should
- What does the trailer air supply control do?
- What is the best way to test the trailer service brakes?
- What is the first step in coupling a tractor-semitrailer?
- If you use the trailer hand valve while you're driving,
- While uncoupling, what should you do AFTER you unlock the fifth wheel?
- Where would you find the shut-off valves?
- Which of the following control air in the service line?
- If you try to couple when the trailer is too high,
- When you check the lower fifth wheel, you do NOT need to make sure
- Which of the following types of vehicles are most likely to get stuck at a raised railroad crossing?
- Which of the following is most likely to roll over?
- Which of the following is NOT a purpose of the emergency air line?
- Which of the following is NOT a way to tell if your trailer is equipped with an antilock braking system (ABS)?
- Which of the following is NOT part of checking that air is flowing to all trailers?
- Which of the following is NOT part of inspecting the coupling?
- Which of the following is NOT part of testing the tractor protection valve?
- Which of the following statements about an antilock braking system (ABS) is FALSE?
- What is the definition of "off-tracking?"
- During a walk-around inspection of a combination vehicle, you should check to make sure that
- To back a trailer, what should you do?
- Loss of air pressure in the emergency line causes
- Which of these statements is true?
- If you cannot make a right turn without swinging into another lane, what should you do?
- If there is a major leak in the _________, the tractor protection valve will close and the trailer emergency brakes will come on.
- The rear wheels of which vehicle will off-track the most?
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