Free Oregon CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Oregon CDL double/triple trailer endorsement test, make sure to know it! Our Oregon CDL Practice Test has the same questions as the real exam which is based on the Oregon 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 Oregon 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 2021 OR commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
OR CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is the purpose of an antilock braking system (ABS)?
When connecting converter dolly to the front trailer, support gear should be:
To check if the converter dolly is securely coupled to the rear trailer you should:
Automatic adjusters should ________.
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:
A low pressure warning signal could be __________.
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
Brake linings should not be _______.
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
Pushing the brake pedal down when the spring brakes are on could _________.
A danger of a malfunctioning tractor protection valve is:
Letting up on the brake pedal _______.
If the air compressor has its own oil supply you should do what before driving?
When driving doubles or triples, for safer handling which trailer should be at the rear?
To apply the parking brakes, you should _______.
When you make an emergency stop, you should _________.
What does the air compressor governor control?
Why should the air hoses connected to the brake chambers be checked?
Drivers of doubles and triples must take into greater account:
The last step to uncouple a converter dolly is: