Free New Jersey CDL Combination Vehicles Practice Test 2022

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 2022 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
1.
While driving behind another vehicle, under good conditions, you should allow at least one second between your vehicle and the vehicle ahead for each ____ feet of your vehicle length.
2.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
3.
For proper hose coupling, lines are often color-coded. Service lines are usually:
4.
Spring brakes are not required on trailers and dollies built before:
5.
The trailer service brakes should be tested with the hand control, and controlled during normal operation by:
6.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
7.
A major leak in the trailer emergency line will cause:
8.
The tractor should be positioned to back under the trailer:
9.
When you notice that your trailer has lost traction and is going into a skid, you should:
10.
When checking the trailer emergency brakes, the tractor protection control valve should be placed in what position?
11.
The best and earliest way to recognize that your trailer has started to skid is:
12.
When coupling or uncoupling, all of these apply to the trailer except:
13.
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
14.
The "rearward amplification" value means:
15.
What will happen if the air lines are crossed when you hook up to an old trailer?
16.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
17.
The hand valve should be used:
18.
You are coupling a tractor to the semitrailer; you have connected the airlines. Before backing under the trailer, you should:
19.
The front trailer supports are up and the trailer is resting on the tractor. Make sure:
20.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?