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Free Arizona CDL Combination Vehicles Practice Test 2023

You have to pass the Arizona CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for good source material for your coming CDL test? You are in the right place. Our Arizona CDL practice test is a great resource for beginners to practice. 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 Practice Test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Arizona CDL manual so you can be sure that the information in our CDL practice 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 Arizona CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2021 AZ commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
AZ CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
Study now
List of questions
1.
Air brake equipped trailers made before 1975:
2.
For proper hose coupling, lines are often color-coded. Service lines are usually:
3.
Hose couplers are also referred to as:
4.
Over 50% of truck driver accident deaths are caused by:
5.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
6.
Compared to a straight truck or bus, there are ______ things to inspect in combination vehicles.
7.
When you are uncoupling a loaded trailer, you should lower the landing gear until it:
8.
In order to allow the trailer brakes to be applied more quickly, what is connected to the service air line?
9.
When coupling, trailer height should:
10.
A major leak in the trailer emergency line will cause:
11.
When pulling trailers:
12.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
13.
When parking trailers without spring brakes, it is very important to:
14.
Converter dollies:
15.
When coupling or uncoupling, all of these apply to the trailer, EXCEPT:
16.
What will happen if the air lines are crossed when you hook up to an old trailer?
17.
Triples combinations have a rearward amplification of:
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.
While checking if the trailer is securely coupled to the tractor, the landing gears should be:
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