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.
When a vehicle goes around a corner, the rear wheels follow a different path than the front. This is called:
2.
After the trailer has been coupled to the tractor, the tractor protection control valve should be placed in what position?
3.
When inspecting the coupling area, all of the following are required except:
4.
The air leakage rate for a combination vehicle (engine off, brakes on) should not be more than _____ psi per minute.
5.
Spring brakes are not required on trailers and dollies built before:
6.
When traveling under 40 mph, how much distance should you leave, at minimum, from the car in front of you?
7.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
8.
When you get ready to back under a semitrailer you should line up:
9.
To help prevent rollover, keep the center of gravity of the load as low as possible, and:
10.
You are driving a combination vehicle when the trailer breaks away, pulling apart both air lines. You expect the trailer brakes to come on and:
11.
Which of these statements is true?
12.
Your emergency air line breaks or gets pulled apart while you are driving. The loss of pressure will cause the:
13.
The emergency air line controls the emergency brakes on combination vehicles, and:
14.
Converter dollies:
15.
To test the trailer brakes before driving, use the hand valve or the:
16.
Why should you be sure that the fifth wheel plate is greased as required?
17.
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
18.
Air and electrical lines from the tractor to the trailer should be:
19.
Before getting out to inspect the coupling, secure the vehicle by putting transmission in neutral, shutting off engine and taking the key with you, and:
20.
Triples combinations have a rearward amplification of: