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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
Study now
List of questions
1.
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
2.
The trailer air supply control knob is:
3.
How much space should be allowed between the upper and lower fifth wheel after coupling?
4.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
5.
Spring brakes are not required on trailers and dollies built before:
6.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
7.
When uncoupling, make sure that the parking area:
8.
After you lock the kingpin into the fifth wheel, you should check the connection by:
9.
You are driving a combination vehicle when the trailer breaks away, pulling apart both air lines. You expect the trailer brakes to come on and:
10.
A major leak in the trailer emergency line will cause:
11.
Trailers will have an ABS malfunction lamp:
12.
Trailer landing gear:
13.
When coupling or uncoupling, all of these apply to the trailer except:
14.
Crack-the-whip effect occurs when:
15.
To stop a trailer skid you should:
16.
You supply air to the trailer tanks by:
17.
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
18.
The "rearward amplification" value means _______.
19.
While driving, you should use the trailer hand valve when?
20.
You are coupling a tractor to the semitrailer; you have connected the airlines. Before backing under the trailer, you should:
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