Free Ohio CDL Combination Vehicles Practice Test 2022

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

Our CDL practice tests:
Based on 2022 OH commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
OH CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
2.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
3.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
4.
The tractor protection valve will close, and the trailer emergency brakes will come on when there is a major leak in the _____ brake line.
5.
Over 50% of truck driver accident deaths are caused by:
6.
Rearward amplification is a major cause of:
7.
To make coupling and uncoupling a loaded trailer easier:
8.
If the service line comes apart while you are driving a combination vehicle, but the emergency line stays together, what will happen right away?
9.
When driving a combination vehicle with multiple trailers or dollies, all air shut-off valves except the last one at the back must be:
10.
A major leak in the trailer emergency line will cause:
11.
Improperly greased or lubricated fifth wheels will cause:
12.
When checking the trailer emergency brakes, the tractor protection control valve should be placed in what position?
13.
If the spring brakes are not released when you pushed the trailer air supply valve you should:
14.
When coupling or uncoupling, all of these apply to the trailer except:
15.
Why should you be sure that the fifth wheel plate is greased as required?
16.
After you have coupled the trailer you should raise the landing gear by using:
17.
You supply air to the trailer tanks by:
18.
After connecting the air lines but before backing under the trailer you should:
19.
When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer:
20.
In case of landing gear failure while pulling out from under it, you should: