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 a stop light switch?
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.
How can you be sure you supplied air to a second trailer?
The air compressor governor stops air from pumping when it reaches the "cut-out" level or around generally _________.
To test the tractor protection valve, the engine needs to be:
The most efficient way to drive down a long grade is to ________.
The converter dolly air tank drain valve on coupled double/triple trailers should be:
A low pressure warning signal could be __________.
Automatic adjusters should ________.
Brake linings should not be _______.
If the rear trailer does not have spring brakes, disconnecting the emergency line after charging will:
How should the air leakage rate be tested?
When the safety valve releases air this indicates ___________.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
Wedge brakes and disc brakes are ______ than s-cam brakes.
Why should you never leave your vehicle unattended without applying the parking brakes?
When testing the trailer emergency brakes, charge the system, pull out the trailer air supply control, and:
What is a front brake limiting valve?
A safe speed on a curve for a smaller commercial vehicle:
When you make an emergency stop, you should _________.