Free Maine CDL Combination Vehicles Practice Test 2022

You have to pass the Maine CDL combination vehicles endorsement to get ready for propelling your career with your license. You are looking for a good Maine 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 Maine 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 Maine CDL Combination Vehicles Practice Test today and walk out with your endorsement!

Our CDL practice tests:
Based on 2022 ME commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
ME CDL Combination Vehicles Test format:
20 questions
16 correct answers to pass
80% passing score
List of questions
1.
Semi-trailers made before 1975 that are equipped with air brakes:
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.
The likelihood of a fully loaded rig turning over compared to an empty trailer is:
4.
Spring brakes are not required on trailers and dollies built before:
5.
To prevent water and dirt from entering the air system, hose couplers can be attached to dummy couplers or:
6.
When you are uncoupling a loaded trailer, you should lower the landing gear until it:
7.
Off-tracking or cheating causes which of these to follow the wider path while making a turn?
8.
When driving a combination vehicle with multiple trailers or dollies, all air shut-off valves except the last one at the back must be:
9.
A major leak in the trailer emergency line will cause:
10.
When pulling trailers:
11.
When checking the trailer emergency brakes, the tractor protection control valve should be placed in what position?
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.
Why should you be sure that the fifth wheel plate is greased as required?
15.
A fifth wheel in proper position for coupling will have:
16.
The "rearward amplification" value means:
17.
After connecting the air lines but before backing under the trailer you should:
18.
When backing under the trailer, do all of the following except:
19.
At the back of trailer used to tow other trailers are shut-off valves, also called:
20.
The fifth wheel locking lever is not locked after the jaws close around the kingpin. This means that: