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
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
How can you be sure you supplied air to a second trailer?
In terms of stability, doubles and triples are:
The braking power of the spring brakes ______.
Automatic adjusters should ________.
The trailer air supply control should pop out when the air pressure falls into the pressure range of:
Air tanks need to be drained ______.
How should the air leakage rate be tested?
When inspecting the shut-off valves on doubles and triples, all of the following is true except:
Letting up on the brake pedal _______.
The tractor protection valve should pop out when air pressure falls to:
Which of the following is the most common reason brakes fade?
In tractors and straight trucks spring brakes will come on fully when the air pressure drops to what range?
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
What is a front brake limiting valve?
Water and oil _______.
You are doing a walk around inspection of a double or triple trailer rig. You should be sure the converter dolly air tank drain valves are _____ and the pintle hook is _________.
To position the converter dolly over short distances you can:
Why should you not drive your vehicle if the air pressure does not build up quickly enough?
A converter dolly is used: