Combination #1
Combination Vehicles Practice Test | Georgia 2025 #1 Page 2 of 3
Train for FREE online with our Georgia 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 GA 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 . 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.
9 . When glad hands are coupled, the seals should be pressed together at an angle of:
90 degrees.
When coupling, be sure to couple the proper glad hands. When glad hands are connected, the seals should be pressed together at a 90-degree angle.
10 . The trailer hand valve should be used:
To test the lights on the trailer.
The trailer hand valve, also called the trolley valve or Johnson bar, is used to work the trailer brakes. It should be used only to test the brakes.
11 . The trailer hand valve should:
Be used on slippery surfaces.
The trailer hand valve works the trailer brakes but should only be used when testing them. Using it while driving could create a skid. Never use the trailer hand valve while parking because doing so may release the air pressure from the braking system, releasing the brakes that are holding the vehicle in place.
12 . Pull out the trailer air supply control to test:
The landing gear.
Be sure to test the trailer emergency brakes before beginning a trip. After ensuring that the trailer rolls freely, you can test the emergency brakes by pulling out the trailer air supply control, or placing it in the "emergency" position. Pull forward slightly with the tractor and make sure the trailer does not move.
13 . What happens when the wheels of a trailer lock up?
The trailer will stop.
A trailer tends to swing around, potentially resulting in a trailer jackknife, if its wheels lock up.
14 . Air pressure in the ____ air line is controlled by either the foot brake or trailer hand brake.
Auxiliary
Air pressure in the service air line is controlled by either the foot brake or trailer hand brake. The service air line is also known as the control line or signal line. This line is connected to relay valves, which allow the trailer brakes to be applied more quickly than would otherwise be possible.
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2025 Georgia | Frequently Asked Questions
To acquire a CDL Tank endorsement in Georgia, you'll first need to have a Commercial Driver's License (CDL). Then, you'll need to pass the Tank Vehicle endorsement test which covers topics like handling liquid cargo and inspecting tank vehicles. Once you pass the test, the Tank endorsement will be added to your CDL.
To obtain a CDL Tank license, it's essential that you already possess a Commercial Driver's License (CDL). You must then study for and pass the Tank Vehicle endorsement test, which covers topics such as handling and inspecting liquid cargo. After successfully passing the test, the Tank endorsement is added to your CDL.
While specific training or experience is not mandatory for a CDL Tank endorsement in Georgia, it's highly recommended. The endorsement test covers handling liquid cargo and inspecting tank vehicles, so knowledge in these areas is beneficial. Training can provide practical experience and improve your chances of passing the endorsement test.
Yes, in Georgia, additional written tests are required to obtain a CDL Tank endorsement. These tests cover topics specific to the safe operation of vehicles carrying liquid or gas in bulk, such as proper loading and unloading procedures, handling hazardous materials, and recognizing potential hazards. Passing these exams is necessary to add the Tank endorsement to your CDL.
The written test for the CDL Tank endorsement covers specific topics related to tank vehicles. These include the inspection of tank vehicles, understanding weight distribution in tank vehicles, safe driving practices for tank vehicles, and how to handle emergencies. It also covers the handling and balancing of liquid cargo, which can behave differently than solid cargo.
The CDL Tank endorsement assessment focuses on your knowledge and understanding of handling tank vehicles. You'll be evaluated on your ability to inspect tank vehicles, understanding of weight distribution, safe driving practices, handling emergencies, and managing liquid cargo. The assessment does not typically involve practical maneuvers but focuses on theoretical knowledge.
Yes, drivers with a CDL Tank endorsement in Georgia are subject to certain limitations and constraints. These include adhering to specific weight restrictions for the type of tank being transported, following proper loading and unloading procedures, and complying with regulations regarding the transportation of hazardous materials. Additionally, drivers must possess the necessary endorsements and permits required for the specific type of tank they are operating.
No, drivers cannot transport liquid or gas materials without a valid CDL Tank endorsement. This endorsement is necessary because handling liquid or gas materials requires specific skills and knowledge, such as understanding weight shift, surge, and how to handle emergencies. Violating this requirement can result in fines and penalties.
The CDL Tank endorsement can be added to your current commercial driver’s license. You do not need to apply for a new license. However, you must pass the Tank Vehicle endorsement written test. Once you pass the test, the endorsement will be added to your existing CDL.
Yes, to transport hazardous materials, you need a Hazardous Materials (HazMat) endorsement in addition to the CDL Tank endorsement. This requires passing a written test and a TSA background check. You must also comply with Federal Motor Carrier Safety Administration (FMCSA) regulations, including special loading/unloading procedures and emergency response protocols.
