Free Massachusetts CDL Double/Triple Trailers Practice Test 2023

Do you know how to pair double or triple trailers? If you are planning to take the Massachusetts CDL double/triple trailer endorsement test, make sure to know it! Our Massachusetts CDL Practice Test has the same questions as the real exam which is based on the MA 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 Massachusetts 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 MA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MA CDL Double/Triple Trailers Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
What is the function of an "application pressure gauge"?
What is the purpose of an antilock braking system (ABS)?
If air supply drops when driving, the tractor protection valve ________.
The increased likelihood of doubles and triples turning over is called:
On newer vehicles, the parking brake control knob is typically yellow, but on older vehicles, the parking brake might be what color?
The service brake system ________.
If the dolly has spring brakes, release them with:
A safety valve that releases air _______.
Automatic air tanks _______.
An air compressor can be cooled by _______.
If you want to couple a second trailer to your combination vehicle, secure it by using:
During a normal drive, the spring brakes are held back by _____.
You are driving with double trailers and must use your brakes to avoid a crash. For emergency braking you should:
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?
Why should air tanks be drained completely?
Why should the air hoses connected to the brake chambers be checked?
Why should you never push the brake pedal down when the spring brakes are on?
When performing the controlled braking method for an emergency stop, you are _________.
What affects the stopping distance for air brakes?
When uncoupling the rear trailer, which of these should be done first?