Combination #2
Combination Vehicles Practice Test | Maine 2025 #2 Page 2 of 3
Train for FREE online with our Maine CDL combination vehicle test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a ME combination license in 2025, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a combination license may vary from state to state.
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8 . Before beginning a trip, you should:
Before a trip, you should ensure that air reaches all air brakes on all trailers by opening up the rear emergency line and service line shut-off valves and listening for escaping air. Close both shut-off valves before beginning to drive.
9 . If a trailer begins to jackknife, the driver:
If a trailer begins to jackknife, you should release the brakes and allow the trailer wheels to regain traction with the road. Do not apply the trailer hand brake to attempt to straighten out the rig because the application of brakes is what caused the wheels to lock in the first place.
10 . The service air line is often controlled by the foot brake and is attached to the ____ valves.
The service air line carries air and is controlled by either the foot brake or trailer hand brake. The service air line is attached to relay valves, which allow the trailer brakes to be applied quickly.
11 . During a trip, the ____ should be open.
When starting a trip, be sure that all shut-off valves are in the open position, except for the last valves on the rear trailer. It is important that air reaches the brakes on all trailers and that it is not able to escape from the back of the vehicle.
12 . More than half of all accident-related truck driver deaths are caused by:
More than half of all accident-related truck driver deaths are a result of truck rollovers. To help prevent a rollover, be sure to load cargo low to the ground and centered on your rig. Take corners slowly and carefully.
13 . If a trailer begins to skid, it is best for the driver to:
If your trailer begins to skid, you should release the brakes to regain traction. The trailer will begin to straighten out once the wheels begin to grip the road again.
14 . The "crack-the-whip" effect can:
Trailers can overturn as a result of the "crack-the-whip" effect. The last trailer in a combination is the most prone to tip over due to this effect. Drivers should be aware of the rearward amplification of their specific vehicles and drive accordingly.
2025 Maine | Frequently Asked Questions
To acquire a CDL Tank endorsement in Maine, you must already have a Commercial Driver's License (CDL). Next, study the Tank Vehicles section of the Maine CDL Handbook. Then, schedule and pass the Tank Vehicles Knowledge Test at your local Bureau of Motor Vehicles (BMV) branch. Upon passing, you'll receive your endorsement. Training courses are also available to help prepare for the test.
Obtaining a CDL Tank license requires having a Commercial Driver's License (CDL) first. You must study the Tank Vehicles section of your state's CDL handbook, then pass the Tank Vehicles Knowledge Test at your local Bureau of Motor Vehicles. Successful completion of this test will grant you the CDL Tank endorsement. Taking a training course is also beneficial.
While specific training or experience is not mandatory to get a CDL Tank endorsement in Maine, it's highly recommended. Studying the Tank Vehicles section of the Maine CDL Handbook is necessary. Passing the Tank Vehicles Knowledge Test at the local Bureau of Motor Vehicles is also required. Training courses, though not compulsory, can help prepare for this test.
Yes, to obtain a CDL Tank endorsement in Maine, you must pass the Tank Vehicles Knowledge Test. This is an additional written exam that covers specific knowledge related to operating tank vehicles. The information for this test can be found in the Tank Vehicles section of the Maine CDL Handbook.
The written test for a CDL Tank endorsement covers several subjects, including the inspection of tank vehicles, safe driving practices for tank vehicles, and safe loading and unloading procedures. It also includes questions about the handling of emergencies and the properties of different types of liquids and gases you might transport.
The CDL Tank endorsement assessment does not involve a skills or maneuvers test. Rather, it is a written test that examines your knowledge of operating tank vehicles. This includes understanding the vehicle's handling characteristics, the importance of inspecting tank vehicles, and the procedures to follow when loading and unloading cargo.
Yes, there are certain limitations for drivers with a CDL Tank endorsement. They are only allowed to operate tank vehicles, which are specifically designed to transport liquid or gaseous materials within a tank. Additionally, if the tank is not permanently attached to the vehicle, it must have a rated capacity of 1,000 gallons or more.
No, you cannot legally transport liquid or gas materials without a valid CDL Tank endorsement in the United States. This endorsement is required for drivers who wish to operate a tank vehicle, defined as a commercial vehicle designed to transport any liquid or gaseous materials within a tank either permanently or temporarily attached to the vehicle.
You can add a CDL Tank endorsement to your current commercial driver's license. You don't need to apply for a new license. However, you must pass the Tank Vehicle written test. After passing, the endorsement will be added to your existing CDL, enabling you to operate tank vehicles legally.
Yes, handling hazardous materials with a CDL Tank endorsement requires an additional Hazmat endorsement. To obtain this, you must pass a written test about the regulations and safety precautions for handling hazardous materials. Additionally, a TSA background check is required to ensure you're not a security risk.