Free Kentucky CDL Combination Vehicles Practice Test 2022

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

Our CDL practice tests:
Based on 2022 KY commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
KY 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 trailer air supply control knob is:
3.
To unlock the fifth wheel, the locking lever should be placed in the ______ position.
4.
You have coupled with a semitrailer, where should you put the iron trailer supports before driving away?
5.
The tractor protection valve will close, and the trailer emergency brakes will come on when there is a major leak in the _____ brake line.
6.
The trailer service brakes should be tested with the hand control, and controlled during normal operation by:
7.
Over 50% of truck driver accident deaths are caused by:
8.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
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.
When coupling, trailer height should:
12.
Converter dollies:
13.
How much space should there be between the upper and lower fifth wheel?
14.
Crack-the-whip effect occurs when:
15.
After you have coupled the trailer you should raise the landing gear by using:
16.
All of these are part of the final 3 steps of uncoupling the trailer except:
17.
When uncoupling the trailer, after you shut off the trailer air supply and lock the trailer brakes, you should:
18.
After connecting the air lines but before backing under the trailer you should:
19.
To test the tractor protection valve, pump the brakes with the engine off until the trailer air supply knob pops out, usually at:
20.
A specific item to check on a sliding fifth wheel is: