Free Minnesota CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Minnesota CDL double/triple trailer endorsement test, make sure to know it! Our MN CDL Practice Test has the same questions as the real exam which is based on the MN 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 Minnesota 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 MN commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MN CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
What is the function of an "application pressure gauge"?
2.
Which is true when checking air flow to all trailers?
3.
What is the purpose of an antilock braking system (ABS)?
4.
What is the function of a stop light switch?
5.
When coupling, correct trailer height should:
6.
Automatic slack adjusters ________.
7.
You will test that the trailer service brakes are working by:
8.
What is likely to happen if the pintle hook is unlocked with the dolly still under the second trailer?
9.
The most common type of foundation brake is?
10.
You are visually checking the coupling of a converter dolly to the rear trailer. How much space should be between the upper and lower fifth wheel?
11.
You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
12.
If the air compressor has its own oil supply you should do what before driving?
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.
Why should you never leave your vehicle unattended without applying the parking brakes?
15.
To apply the parking brakes, you should _______.
16.
What does the air compressor governor control?
17.
In dual-air systems the pressure should build to _______.
18.
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 _________.
19.
When inspecting doubles and triples shut-off valves, which of the following is true?
20.
A visual inspection after coupling should show that: