Free Michigan CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Michigan CDL double/triple trailer endorsement test, make sure to know it! Our Michigan CDL Practice Test has the same questions as the real exam which is based on the Michigan 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 Michigan 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 MI commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MI CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What should you do when the low air pressure warning comes on?
Air brakes take longer to stop than hydraulic brakes because _______.
How often should alcohol containers be checked during cold weather?
After coupling, the air shut-off valves at the back of the first trailer should be:
You should check trailer height before connecting a converted dolly to a second or third trailer. The trailer height is right when:
On older vehicles, a low air pressure warning signal comes on at what psi?
The air compressor should pump air starting at what psi?
At 55 mph on dry pavement, the air brake lag distance is how many feet?
You are driving a set of doubles and a set of trailer wheels goes into a skid. Which of these is most likely to occur?
If the dolly has spring brakes, release them with:
The service brake system ________.
A danger of a malfunctioning tractor protection valve is:
Vehicles without automatic air tank drains need to be checked manually to remove ________?
When checking that air is flowing to all trailers, what is used to provide air to the supply lines?
It's important that a warning signal comes on before the air pressure in the tank falls below _______.
What does the air compressor governor control?
Why do some air brake systems have an alcohol evaporator?
Which of the following factors explains why the total stopping distance for air brakes is longer than that for hydraulic brakes?
You can test whether the trailer air system is charged by:
When inspecting doubles and triples shut-off valves, which of the following is true?