FREE CDL Combination Vehicles Practice Test Online | Alabama 2024

Train for FREE online with our Alabama 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 AL combination license in 2021, practice as much as.. Read More

Train for FREE online with our Alabama 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 AL combination license in 2021, 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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To Pass

1 . After finishing a pre-trip inspection, you should:

Leave the rear shut-off valves open. 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 to listen for escaping air. Close both shut-off valves before beginning to drive.

2 . When driving a vehicle equipped with an Anti-Lock Braking System (ABS), brakes should be applied:

When driving a vehicle with ABS, you should brake in the same manner as you would in a vehicle without ABS.

3 . 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.

4 . When coupling a trailer:

Only one set of glad hands should be connected. When coupling, make sure you couple matching glad hands. They are often color-coded to help drivers avoid mistakes. Typically, blue is used for service lines and red is used for emergency lines.

5 . Rollovers happen when drivers:

Drive illegally. A rollover happens as a result of a driver taking a turn at too high a speed. Be sure to take turns and curves safely and slowly.

6 . Look into the back of the fifth wheel:

While inspecting a coupling, you should go under the trailer and look into the back of the fifth wheel. Ensure that the fifth wheel jaws are secured around the shank of the kingpin.

7 . To prevent a rollover, a driver should:

Turn quickly. Rollovers can happen when a combination vehicle is turned too quickly. To help prevent the risk of rollover, it is important to keep the vehicle's center of gravity low by loading cargo as close to the ground as possible.

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2024 Alabama | Frequently Asked Questions

To secure a CDL Doubles/Triples endorsement in Alabama, you must already possess a valid commercial driver's license (CDL). You'll then need to pass the Doubles and Triples Endorsement Knowledge Test. This test covers topics such as coupling and uncoupling, inspecting doubles and triples, and the proper procedures for towing double/triple trailers.
To obtain a CDL Doubles/Triples license, you must first have a valid commercial driver's license (CDL). Next, you'll need to pass the Doubles/Triples Endorsement Knowledge Test. This test covers areas such as coupling and uncoupling, inspecting doubles and triples, and correct towing procedures. Finally, pay the necessary fees to add the endorsement to your CDL.
While Alabama doesn't mandate specialized training for a CDL Doubles/Triples endorsement, it's recommended to study the Doubles/Triples section in the CDL manual thoroughly. This will prepare you for the written knowledge test at your local DMV. Practical experience driving such vehicles can also be beneficial, but it's not a legal requirement.
Yes, to obtain a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples Endorsement Knowledge Test. This written test covers specific areas related to driving double and triple trailers, such as coupling and uncoupling, inspecting doubles and triples, and the correct procedures for towing these types of trailers.
The CDL Doubles/Triples endorsement test is a written knowledge test, not a skills test. It covers topics like coupling and uncoupling, inspecting doubles and triples, and correct towing procedures. However, practical skills like maneuvering such vehicles safely are important to learn during training, even though they are not directly tested during the endorsement exam.
No, it's not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in Alabama. This endorsement is required by law to ensure that drivers have the necessary knowledge and skills to operate these types of vehicles safely. Operating without the proper endorsement can result in fines and penalties.
You can add the CDL Doubles/Triples endorsement to your existing Commercial Driver's License. You don't need to initiate a completely new application. However, you will need to pass the Doubles/Triples Endorsement Knowledge Test and pay any associated fees to obtain this endorsement. Always check with your local DMV for specific procedures and requirements.
Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. These drivers can only operate vehicles that are specifically designed for double or triple trailers. They can't exceed the weight limits set by federal and state laws, and they must comply with hours of service regulations to prevent fatigue-related accidents. Additionally, specific routes may be restricted for these vehicles.
In Alabama, the maximum legal weight for a double or triple trailer setup is 80,000 pounds, depending on the trailer's axle configuration. The maximum length for any one trailer is 53 feet, but the combined length of all trailers can't exceed 65 feet. Violating these restrictions may result in penalties or fines.
Yes, drivers with a CDL Doubles/Triples endorsement must follow specific safety guidelines. These include conducting pre-trip inspections, understanding how to couple and uncouple correctly, and knowing how to handle the high rollover risk associated with these trailers. They must also ensure proper weight distribution in trailers and follow the rules for maintaining safe following distances. Compliance with all federal and state regulations is mandatory.

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