Free Louisiana CDL Combination Vehicles Practice Test 2022

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

Our CDL practice tests:
Based on 2022 LA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
LA CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
To prevent moisture from entering the electrical cable when disconnected:
2.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
3.
How much space should be allowed between the upper and lower fifth wheel after coupling?
4.
After you supply air to the trailer, make sure the air lines are not crossed and the trailer brakes are working. This is done by:
5.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
6.
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:
7.
If you have to enter another traffic lane to complete a wide turn, you should:
8.
What is the term for a commercial vehicle habit of swinging wide on turns?
9.
The trailer hand valve should be used:
10.
To stop other drivers from passing you on the right when turning wide:
11.
The tractor should be positioned to back under the trailer:
12.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
13.
To test the trailer brakes before driving, use the hand valve or the:
14.
You are coupling a tractor to a semitrailer and have backed up, but are not under it. What should you hook up before backing under?
15.
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
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.
After you have coupled the trailer you should raise the landing gear by using:
19.
The safety latch for the fifth wheel locking lever must be _____ for a coupling to be complete.
20.
When backing under the trailer, do all of the following except: