Free New Jersey CDL Combination Vehicles Practice Test 2023

You have to pass the New Jersey CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good CDL Practice Test NJ source for your coming CDL test? You are in the right place. Our practice test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official NJ CDL Manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free New Jersey CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2021 NJ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NJ CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
Semi-trailers made before 1975 that are equipped with air brakes:
You should not back a tractor under a trailer until the air system is:
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
After you supply air to the trailer, make sure the air lines are not crossed and the trailer brakes are working. This is done by:
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
To help prevent rollover, keep the center of gravity of the load as low as possible, and:
When coupling, trailer height should:
When unlocking the fifth wheel in Step 6, all of the following apply except:
If the spring brakes are not released when you pushed the trailer air supply valve you should:
Crack-the-whip effect occurs when:
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
To stop a trailer skid you should:
To test the trailer brakes before driving, use the hand valve or the:
Rocky mountain doubles have a rearward amplification of about:
When backing a tractor under a trailer you should:
All of these are part of the final 3 steps of uncoupling the trailer except:
The safety latch for the fifth wheel locking lever must be _____ for a coupling to be complete.
When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer:
Triples combinations have a rearward amplification of: