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 a modulating control valve?
2.
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
3.
You are driving a 100-foot truck with double trailers at 30 mph. The road is dry, and visibility is good. You should keep at least ______ seconds of space ahead of you.
4.
The air compressor governor stops air from pumping when it reaches the "cut-out" level or around generally _________.
5.
How do air-operated disc brakes work?
6.
An air brake is made up of which of the following braking systems?
7.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
8.
Brake linings should not be _______.
9.
On older vehicles, a low air pressure warning signal comes on at what psi?
10.
Which of these statements about the handling of doubles and triples is true?
11.
A front brake limiting valve ______.
12.
When driving doubles or triples in adverse or slippery weather conditions, all of the following are true except:
13.
Why should you check the brake adjustment often?
14.
Where is compressed air stored?
15.
If you have manual transmission _________.
16.
Vehicles with air brakes have pressure gauges connected to the _______.
17.
Why should you not drive your vehicle if the air pressure does not build up quickly enough?
18.
When the mechanical arm of a wig wag drops into your view that means the pressure in your system has dropped below what psi?
19.
Drivers of doubles and triples must take into greater account:
20.
A converter dolly is used: