Combination #2
Combination Vehicles Practice Test | Kentucky 2025 #2 Page 2 of 3
Train for FREE online with our Kentucky 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 KY 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 . Shut-off valves:
Shut-off valves are used in air supply lines to control the passage of air from one trailer to another. The rear shut-off valve should always be closed to prevent air from leaving the braking system.
9 . 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.
10 . If you are backing and the trailer begins to drift off-course, the driver should:
If your trailer begins to drift while you are backing, you should correct the drift immediately by turning the top of the steering wheel in the direction of the drift.
11 . Keeping cargo centered on a rig can:
A rollover is more likely if cargo is unevenly loaded in a rig. To help prevent a dangerous rollover, it is important to keep a load as centered on the rig as possible.
12 . Keeping cargo low can:
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.
13 . The tractor protection valve:
A tractor protection valve keeps air in a tractor or truck air brake system should the trailer break away or develop a bad leak. The valve will close automatically if the pressure drops to an unsafe level.
14 . Trailers with low underneath clearance can present challenges when driving over:
Railroad-highway crossings may be difficult to cross when pulling a trailer with a low underneath clearance. In particular, both low-slung units and single-axle tractors pulling long trailers are especially challenging to drive over raised crossings.
See the exact questions that will be on the 2025 Kentucky DMV exam.
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2025 Kentucky | Frequently Asked Questions
A CDL Class A license in Kentucky allows drivers to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more, provided the towed vehicle is heavier than 10,000 lbs. This typically includes tractor-trailers, truck and trailer combinations, flatbeds, livestock carriers, and tank vehicles.
A Class A CDL license in Kentucky permits the operation of vehicles such as tractor-trailers, truck and trailer combinations, tanker vehicles, livestock carriers, and flatbeds. Essentially, it allows you to drive any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more where the towed vehicle is over 10,000 lbs.
To obtain a Class A CDL license in Kentucky, applicants must be at least 18 years old for intrastate driving and 21 for interstate. They must pass a vision test, hold a regular driver's license, complete a CDL General Knowledge test and any relevant endorsement tests. A skills test in the vehicle type that the driver's license will be issued for is also required.
In Kentucky, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Kentucky only). However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.
Endorsements are not required for a Class A CDL license, but they can expand your driving capabilities. For example, a Hazardous Materials (H) endorsement allows you to haul hazardous materials, while a Tank Vehicle (N) endorsement lets you drive tank vehicles. Obtaining these endorsements requires additional knowledge and skills tests.
The Class A CDL skills test in Kentucky encompasses three parts: a vehicle inspection test, a basic controls test, and a road test. The vehicle inspection test checks your ability to assess the safety of your vehicle. The basic controls test evaluates your ability to maneuver and control the vehicle. The road test assesses your on-road driving skills.
Yes, Class A CDL license holders in Kentucky may face limitations based on their specific endorsements or restrictions. For instance, if you lack a passenger or school bus endorsement, you're prohibited from driving those vehicles. Also, if you have an air brake restriction, you cannot operate vehicles with air brakes. Other restrictions may apply based on medical evaluations or driving tests.
In Kentucky, the written Class A CDL test is primarily administered in English. However, some locations may offer the test in Spanish. It's important to note that all drivers must understand English to a degree that allows them to communicate with officials and read road signs, as per federal regulations.
Yes, you can request accommodations for the Class A CDL written test in Kentucky if you have a disability. Contact the Kentucky Division of Driver Licensing and provide documentation of your disability. They will guide you through the process to ensure your testing environment meets your needs. Accommodations may include extra time, a separate room, or assistive technology.
Yes, if you fail the Class A CDL written test in Kentucky, you can retake it. There is a waiting period of one day before you can try again. You will need to pay the testing fee each time. It's recommended to study the CDL manual thoroughly before your next attempt to increase your chances of passing.
