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.
Before you back under a trailer, make sure that:
2.
The air lines on a combination vehicle are often colored to prevent them from mixing up. The emergency line is _____, the service line is _________.
3.
When you open the emergency shut-off valve at the back of the last trailer after supplying air to trailer(s):
4.
The shut-off valves at the back of the last trailer should be:
5.
After you supply air to the trailer, make sure the air lines are not crossed and the trailer brakes are working. This is done by:
6.
Over 50% of truck driver accident deaths are caused by:
7.
Tractor with a ______ trailer requires the shortest amount of stopping distance.
8.
Before coupling or uncoupling, the trailer wheels should always be:
9.
There are two things that a driver can do to prevent a rollover. They are: (1) go slow around turns, and (2):
10.
When pulling trailers:
11.
To help release the fifth wheel locking lever:
12.
When unlocking the fifth wheel in Step 6, all of the following apply except:
13.
When you notice that your trailer has lost traction and is going into a skid, you should:
14.
Some of the points for inspecting the coupling include the following except:
15.
Crack-the-whip effect occurs when:
16.
In normal driving, some drivers use the hand valve before the brake pedal to prevent a jack-knife. Which of the statements is true?
17.
A fifth wheel in proper position for coupling will have:
18.
You have a major leak in the service line, and you put on the brakes. Service air will escape and cause the:
19.
A specific item to check on a sliding fifth wheel is:
20.
Why should you lock the tractor glad hands to each other (or dummy couplers) when you are not towing a trailer?