Free North Carolina CDL Combination Vehicles Practice Test 2022

You have to pass the North Carolina CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good NC CDL Test 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 NC 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 North Carolina CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 NC commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
NC CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Before you back under a trailer, make sure that:
2.
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
3.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
4.
For proper hose coupling, lines are often color-coded. Service lines are usually:
5.
A function of the tractor protection valve is:
6.
Spring brakes are not required on trailers and dollies built before:
7.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
8.
Compared to a straight truck or bus, there are ______ things to inspect in combination vehicles.
9.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
10.
Which part of the kingpin should the locking jaw close around?
11.
The locking jaws should be around:
12.
When you notice that your trailer has lost traction and is going into a skid, you should:
13.
Driving with an empty trailer:
14.
What will happen if the air lines are crossed when you hook up to an old trailer?
15.
When backing a tractor under a trailer you should:
16.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
17.
When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer:
18.
At the back of trailer used to tow other trailers are shut-off valves, also called:
19.
When coupling, the proper position of the fifth wheel is:
20.
The front trailer supports are up and the trailer is resting on the tractor. Make sure: