Free Colorado CDL Combination Vehicles Practice Test 2022

You have to pass the Colorado CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Colorado CDL practice test source for your coming CDL test? You are in the right place. Our CDL 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 Practice Test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official Colorado 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 Colorado CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 CO commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CO 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.
The trailer air supply control knob is:
3.
While driving behind another vehicle, under good conditions, you should allow at least one second between your vehicle and the vehicle ahead for each ____ feet of your vehicle length.
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.
The shut-off valves at the back of the last trailer should be:
7.
Over 50% of truck driver accident deaths are caused by:
8.
Which part of the kingpin should the locking jaw close around?
9.
Off-tracking or cheating causes which of these to follow the wider path while making a turn?
10.
To make coupling and uncoupling a loaded trailer easier:
11.
If you have to enter another traffic lane to complete a wide turn, you should:
12.
When driving a combination vehicle with multiple trailers or dollies, all air shut-off valves except the last one at the back must be:
13.
To stop other drivers from passing you on the right when turning wide:
14.
The trailer hand valve should be used:
15.
The emergency air line is usually what color?
16.
When uncoupling, the tractor should:
17.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
18.
You supply air to the trailer tanks by:
19.
What will happen if the air lines are crossed when you hook up to an old trailer?
20.
After connecting the air lines but before backing under the trailer you should: