Free Ohio CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Ohio CDL double/triple trailer endorsement test, make sure to know it! Our Ohio CDL Practice Test has the same questions as the real exam which is based on the Ohio CDL Manual. It covers most of the subject areas on the Double/Triple Trailers Test such as pulling double and triple trailers, the risk of rollover, managing space, and special considerations when hauling multiple trailers. In addition, each question has a detailed explanation that will help you understand the concept and answer future questions about it correctly. If you don't get the pass right away, you can take this CDL practice test an unlimited number of times to make sure you learn all the questions. Let’s try our Free Ohio CDL Double/Triple Trailers Practice Test today and pass your CDL endorsement exam! Good luck and keep driving safely!

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 Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is a modulating control valve?
2.
What is the purpose of a front-brake limiting valve?
3.
To test the tractor protection valve, the engine needs to be:
4.
How can you be sure you supplied air to a second trailer?
5.
When testing the coupling of the double trailer, the landing gears of the rear trailer should be:
6.
You will test that the trailer service brakes are working by:
7.
With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. When you do this, you should hear:
8.
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
9.
Air tanks need to be drained ______.
10.
The service brake system ________.
11.
How do you check the low pressure warning signal?
12.
If your vehicle is not equipped with ABS, when you brake hard on a slippery surface what may occur?
13.
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
14.
When checking that air is flowing to all trailers,what is used to provide air to the supply lines?
15.
Why should you never leave your vehicle unattended without applying the parking brakes?
16.
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
17.
Why should air tanks be drained completely?
18.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
19.
If the air compressor does not have its own oil supply, how is it lubricated?
20.
The pintle hook should never be unlocked when: