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.
When a vehicle goes around a corner, the rear wheels follow a different path than the front. This is called:
2.
The air lines on a combination vehicle are often colored to prevent them from mixing up. The emergency line is _____, the service line is _________.
3.
You should not back a tractor under a trailer until the air system is:
4.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
5.
Hose couplers are also referred to as:
6.
A function of the tractor protection valve is:
7.
The shut-off valves at the back of the last trailer should be:
8.
When should you use the hand valve to park a combination vehicle?
9.
To help release the fifth wheel locking lever:
10.
When parking trailers without spring brakes, it is very important to:
11.
The emergency air line is usually what color?
12.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
13.
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
14.
Driving with an empty trailer:
15.
You have a major leak in the service line, and you put on the brakes. Service air will escape and cause the:
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.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:
19.
While driving, you should use the trailer hand valve when?
20.
While checking if the trailer is securely coupled to the tractor, the landing gears should be: