Free South Carolina CDL Combination Vehicles Practice Test 2023

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

Our CDL practice tests:
Based on 2021 SC commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
SC CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which of the following is part of the electrical and air lines coupling inspection?
2.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
3.
The shut-off valves at the back of the last trailer should be:
4.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
5.
When uncoupling, make sure that the parking area:
6.
When you get ready to back under a semitrailer you should line up:
7.
You have pushed the trailer air supply valve. You should not back a tractor under a trailer until the whole air system is:
8.
Tractor with a ______ trailer requires the shortest amount of stopping distance.
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.
When backing under the trailer, air lines:
11.
When coupling, trailer height should:
12.
What is the term for a commercial vehicle habit of swinging wide on turns?
13.
The tractor should be positioned to back under the trailer:
14.
When checking the trailer emergency brakes, the tractor protection control valve should be placed in what position?
15.
Why should you be sure that the fifth wheel plate is greased as required?
16.
Driving with an empty trailer:
17.
You supply air to the trailer tanks by:
18.
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
19.
Rocky mountain doubles have a rearward amplification of about:
20.
The hand valve should be used: