Free Maryland CDL Double/Triple Trailers Practice Test 2022

Do you know how to pair double or triple trailers? If you are planning to take the Maryland CDL double/triple trailer endorsement test, make sure to know it! Our Maryland CDL Practice Test has the same questions as the real exam which is based on the Maryland 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 Maryland 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 MD commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MD CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
The part of the combination vehicle most likely to turn over is the:
2.
What is the purpose of an antilock braking system (ABS)?
3.
If air supply drops when driving, the tractor protection valve ________.
4.
Automatic slack adjusters ________.
5.
The most efficient way to drive down a long grade is to ________.
6.
When you turn with the tractor/triple trailer combination, the wheels that off-track (cheat) the most are:
7.
With the hand valve on, you should test the trailer brakes by opening the service line valve at the rear of the trailer. When you do this, you should hear:
8.
Automatic adjusters should ________.
9.
An air brake is made up of which of the following braking systems?
10.
You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks you should:
11.
A danger of a malfunctioning tractor protection valve is:
12.
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?
13.
What is a front brake limiting valve?
14.
If you have manual transmission _________.
15.
Typically, air storage tanks hold enough air to allow the brakes to be used _______ even if the compressor stops working.
16.
When stab braking if you re-apply the brakes before the wheels start rolling, __________.
17.
Why should the air hoses connected to the brake chambers be checked?
18.
Why should you never push the brake pedal down when the spring brakes are on?
19.
You can test whether the trailer air system is charged by:
20.
Drivers of doubles and triples must take into greater account: