Free Maine CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Maine CDL double/triple trailer endorsement test, make sure to know it! Our Maine CDL Practice Test has the same questions as the real exam which is based on the Maine 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 Maine 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 ME commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
ME CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
When checking the low pressure warning signal, it should turn on before the pressure drops below what psi?
2.
When coupling, correct trailer height should:
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.
You will test that the trailer service brakes are working by:
5.
How often should alcohol containers be checked during cold weather?
6.
After coupling, the air shut-off valves at the back of the first trailer should be:
7.
Brake linings should not be _______.
8.
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?
9.
How should the air leakage rate be tested?
10.
The most common type of foundation brake is?
11.
Wedge brakes and disc brakes are ______ than s-cam brakes.
12.
Typically, air storage tanks hold enough air to allow the brakes to be used _______ even if the compressor stops working.
13.
Why should you never push the brake pedal down when the spring brakes are on?
14.
Why do some air brake systems have an alcohol evaporator?
15.
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 _________.
16.
Where are the brake drums located?
17.
In dual-air systems the pressure should build to _______.
18.
When inspecting doubles and triples shut-off valves, which of the following is true?
19.
If the malfunction lamp stays on after the bulb check, __________.
20.
A converter dolly is used: