Free Connecticut CDL Combination Vehicles Practice Test 2023

You have to pass the 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 CDL 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. The Connecticut CDL Combination Vehicles Practice Test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official CT 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 Connecticut CDL Practice test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2021 CT commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CT CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
The air lines on a combination vehicle are often colored to prevent them from mixing up. The emergency line is _____, the service line is _________.
2.
You should not back a tractor under a trailer until the air system is:
3.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
4.
If your trailer goes into a skid, you should do all of the following except:
5.
The iron trailer supports are up and the trailer is resting on the tractor. Make sure:
6.
The shut-off valves at the back of the last trailer should be:
7.
Supplied by the service line from the tractor, each trailer or dolly has its own:
8.
When pulling trailers:
9.
What is the term for a commercial vehicle habit of swinging wide on turns?
10.
To help release the fifth wheel locking lever:
11.
The tractor should be positioned to back under the trailer:
12.
When unlocking the fifth wheel in Step 6, all of the following apply except:
13.
How should you test the tractor-semitrailer connection for security?
14.
Some of the points for inspecting the coupling include the following except:
15.
A fifth wheel in proper position for coupling will have:
16.
When backing a tractor under a trailer you should:
17.
After connecting the air lines but before backing under the trailer you should:
18.
Air and electrical lines from the tractor to the trailer should be:
19.
When backing under the trailer, do all of the following except:
20.
The front trailer supports are up and the trailer is resting on the tractor. Make sure: