Free Massachusetts CDL Combination Vehicles Practice Test 2022

You have to pass the Massachusetts CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Massachusetts CDL Practice Test source for your coming CDL test? You are in the right place. Our practice test is a great resource for beginners. The test is designed for you to have exactly the experience of the exam as you will be more familiar with both the test format and the subject. Our CDL practice test covers topics ranging from combination vehicle maintenance to safely driving a complex rig. Each question is based on the official MA CDL Manual so you can be sure that the information in our test is accurate and relevant to your examination. In addition, each question has a detailed explanation so that it is very useful for you to learn from your mistakes. Preparing well before test day with questions and content that we cover. Start with our Free Massachusetts CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 MA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
MA CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Which of the following is part of the electrical and air lines coupling inspection?
2.
To prevent moisture from entering the electrical cable when disconnected:
3.
Semi-trailers made before 1975 that are equipped with air brakes:
4.
After supplying air to the trailer, how should you check for crossed air lines?
5.
For proper hose coupling, lines are often color-coded. Service lines are usually:
6.
A function of the tractor protection valve is:
7.
When uncoupling, make sure that the parking area:
8.
There are two things that a driver can do to prevent a rollover. They are: (1) keep the cargo as close to the ground as possible and (2):
9.
A major leak in the trailer emergency line will cause:
10.
The trailer hand valve should be used:
11.
The tractor should be positioned to back under the trailer:
12.
If the wheels of the trailer lock up and the trailer swings around, it could cause a:
13.
When parking trailers without spring brakes, it is very important to:
14.
The emergency air line is usually what color?
15.
There are two things that a driver can do to prevent a rollover: They are: (1) go slow around turns, and (2):
16.
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
17.
When driving a set of doubles, it is necessary to close which shut-off valve in the last trailer:
18.
Glad hands are usually connecting which of these?
19.
While checking if the trailer is securely coupled to the tractor, the landing gears should be:
20.
The front trailer supports are up and the trailer is resting on the tractor. Make sure: