Free California CDL Combination Vehicles Practice Test 2022

You have to pass the California 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 website 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 California 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 California CDL Handbook 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 California CDL Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 CA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CA CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Air brake equipped trailers made before 1975:
2.
Semi-trailers made before 1975 that are equipped with air brakes:
3.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
4.
For proper hose coupling, lines are often color-coded. Service lines are usually:
5.
If your trailer goes into a skid, you should do all of the following except:
6.
The tractor protection valve will close, and the trailer emergency brakes will come on when there is a major leak in the _____ brake line.
7.
Compared to a straight truck or bus, there are ______ things to inspect in combination vehicles.
8.
When connecting the glad hands, press the two seals with the couplers together at what degree to each other?
9.
Rearward amplification is a major cause of:
10.
What is the term for a commercial vehicle habit of swinging wide on turns?
11.
To stop other drivers from passing you on the right when turning wide:
12.
The emergency air line controls the emergency brakes on combination vehicles, and:
13.
A driver crosses the air lines when hooking up to an old trailer. What will happen?
14.
If the wheels of the trailer lock up and the trailer swings around, it could cause a:
15.
How much space should there be between the upper and lower fifth wheel?
16.
Air and electrical lines from the tractor to the trailer should be:
17.
Before getting out to inspect the coupling, secure the vehicle by putting transmission in neutral, shutting off engine and taking the key with you, and:
18.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that:
19.
Where should the tractor be when you inspect the landing gear after uncoupling the trailer?
20.
The front trailer supports are up and the trailer is resting on the tractor. Make sure: