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.
When inspecting the coupling area, all of the following are required except:
2.
How much space should be allowed between the upper and lower fifth wheel after coupling?
3.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
4.
Hose couplers are also referred to as:
5.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
6.
If you have to enter another traffic lane to complete a wide turn, you should:
7.
Which of these statements is true?
8.
There are two things that a driver can do to prevent a rollover. They are: (1) go slow around turns, and (2):
9.
What is the term for a commercial vehicle habit of swinging wide on turns?
10.
When uncoupling, the tractor should:
11.
Some of the points for inspecting the coupling include the following except:
12.
The best and earliest way to recognize that your trailer has started to skid is:
13.
When coupling or uncoupling, all of these apply to the trailer except:
14.
You are coupling a tractor to a semitrailer and have backed up, but are not under it. What should you hook up before backing under?
15.
Why should you be sure that the fifth wheel plate is greased as required?
16.
All of these are part of the final 3 steps of uncoupling the trailer except:
17.
To test the tractor protection valve, pump the brakes with the engine off until the trailer air supply knob pops out, usually at:
18.
The hand valve should be used:
19.
A specific item to check on a sliding fifth wheel is:
20.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?