Free Maine CDL Combination Vehicles Practice Test 2023

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 2021 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
You should not back a tractor under a trailer until the air system is:
After supplying air to the trailer, how should you check for crossed air lines?
The higher the center of gravity of your truck, the:
Compared to a straight truck or bus, there are ______ things to inspect in combination vehicles.
When connecting the glad hands, press the two seals with the couplers together at what degree to each other?
To help prevent rollover, keep the center of gravity of the load as low as possible, and:
Rearward amplification is a major cause of:
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:
What is the term for a commercial vehicle habit of swinging wide on turns?
The locking jaws should be around:
The emergency air line controls the emergency brakes on combination vehicles, and:
A driver crosses the air lines when hooking up to an old trailer. What will happen?
When you notice that your trailer has lost traction and is going into a skid, you should:
Like tractor air tanks, trailer air tanks should be kept free of dirt and oil by:
You are about to back your tractor under a semitrailer. The trailer is at the right height when the:
The hand valve should be used:
Air and electrical lines from the tractor to the trailer should be:
When coupling, the proper position of the fifth wheel is:
The front trailer supports are up and the trailer is resting on the tractor. Make sure:
In case of landing gear failure while pulling out from under it, you should: