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.
To prevent moisture from entering the electrical cable when disconnected:
2.
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
3.
When inspecting the coupling area, all of the following are required except:
4.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
5.
For proper hose coupling, lines are often color-coded. Service lines are usually:
6.
A function of the tractor protection valve is:
7.
Hose couplers are also referred to as:
8.
If your trailer goes into a skid, you should do all of the following except:
9.
Rearward amplification is a major cause of:
10.
When backing under the trailer, air lines:
11.
When pulling trailers:
12.
To stop other drivers from passing you on the right when turning wide:
13.
The emergency air line controls the emergency brakes on combination vehicles, and:
14.
When unlocking the fifth wheel in Step 6, all of the following apply except:
15.
Improperly greased or lubricated fifth wheels will cause:
16.
If the wheels of the trailer lock up and the trailer swings around, it could cause a:
17.
When parking trailers without spring brakes, it is very important to:
18.
How much space should there be between the upper and lower fifth wheel?
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.
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: