FREE CDL Combination Vehicles Practice Test Online | Tennessee 2024
Train for FREE online with our Tennessee 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 TN 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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1 . What is a bobtail tractor?
Tractors without semi-trailers are referred to as "bobtail tractors." Bobtail tractors are difficult to operate and drivers must exercise caution.
2 . When a vehicle goes around a corner, the rear wheels:
When any vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking. The degree of off-tracking will be greater on long vehicles than on short vehicles.
3 . A loss of air pressure in the emergency line will cause:
The suspension springs to extend.
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
4 . To control surge when stopping, you should not:
To reduce the risk of a surge in a tank vehicle, slow or stop while keeping a steady pressure on the brakes and do not release the brakes too early. Brake well in advance of a stop and increase your following distance.
5 . If the emergency air line loses pressure:
The tractor protection valve keeps air in the trailer's braking system should the trailer break away or develop a leak. A loss of air pressure in the emergency line will cause the tractor protection valve to open and the emergency trailer brakes to activate.
6 . Fully-loaded rigs:
Fully-loaded rigs are more vulnerable to rolling over than empty rigs because the weight of the cargo gives the vehicles higher centers of gravity.
7 . Rearward amplification refers to:
Vehicles with trailers are vulnerable to rollover due to the "crack-the-whip" effect, which is caused by rearward amplification.
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2024 Tennessee | Frequently Asked Questions
A CDL Class A license in Tennessee allows the holder to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed exceeds 10,000 pounds. It covers vehicles like tractor-trailers, truck and trailer combinations, and flatbeds.
A Class A CDL license in Tennessee allows the holder to operate vehicles such as tractor-trailers, truck and trailer combinations, flatbeds, tanker vehicles, and livestock carriers. It is typically used for long-haul or over-the-road (OTR) trucking. The license covers any vehicle with a GCWR of 26,001 pounds or more if the towed vehicle is over 10,000 pounds.
To obtain a Class A CDL license in Tennessee, you must be at least 21 years old (18-20 years for intrastate driving), possess a valid Tennessee driver's license, pass a vision test, and successfully complete both a knowledge test and a skills test. You'll also need to provide proof of citizenship or lawful permanent residency.
In Tennessee, you must be at least 21 years old to qualify for a Class A Commercial Driver's License (CDL) for interstate driving. However, you can obtain a Class A CDL for intrastate driving (within Tennessee) if you are at least 18 years old.
Specific endorsements are not required for a Class A CDL license, but they can expand your job opportunities. Endorsements allow you to operate specific types of vehicles, such as tank vehicles (N), passenger vehicles (P), school buses (S), or vehicles carrying hazardous materials (H). Each endorsement requires passing additional knowledge and/or skills tests.
The Class A CDL skills test in Tennessee encompasses three parts: a pre-trip inspection to confirm that your vehicle is safe to drive, a basic vehicle control test to demonstrate your ability to maneuver and control the vehicle, and an on-road driving test where you'll be evaluated on your interaction with traffic and adherence to safety rules.
Yes, there can be limitations on Class A CDL license holders. These are typically represented as restrictions noted on the license. For example, if you take your skills test in a vehicle without air brakes, you'll have an "L" restriction and can't operate vehicles with air brakes. Other restrictions can relate to medical conditions or the specific type of vehicle used for testing.
In Tennessee, the Class A CDL written test is primarily administered in English. However, some locations may offer the test in Spanish. It's important to note that all CDL holders must be able to read and speak English well enough to communicate with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class A CDL written test if you have a disability. The Tennessee Department of Safety & Homeland Security is committed to ensuring accessibility for all test takers. You should contact them directly ahead of your scheduled test to discuss your specific needs and arrange appropriate accommodations.
If you don't pass the Class A CDL written test, you can retake it. However, you must wait at least one day before retesting. There's no limit on how many times you can retake the test, but each attempt requires a fee. It's advisable to study thoroughly before retesting to increase your chances of passing.
