Combination #2
Combination Vehicles Practice Test | Tennessee 2025 #2 Page 2 of 3
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 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 entering or crossing traffic while driving a combination vehicle, it is especially important that you:
Let other drivers wave you into their lane.
Combination vehicles require more space on the road than other vehicles. When entering or crossing traffic while driving a combination vehicle, it is especially important that there is a large enough gap in traffic for you to safely do so.
9 . Watching the road ahead:
Making a sudden lane change can be dangerous while driving a combination vehicle. You can avoid the need to make a sudden lange change by looking down the road for upcoming obstacles that will require you to change lanes.
10 . 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.
11 . Operating combination vehicles usually requires ____ operating single vehicles.
Combination vehicles are usually heavier and longer than single combination vehicles. Operating a combination vehicle requires a higher level of driving skill than operating a single commercial vehicle.
12 . If a parked trailer does not have spring brakes, you should keep the trailer from moving by:
Parking on a slight incline.
If a parked trailer does not have spring brakes, wheel chocks should be used to prevent it from moving. Air brakes can only hold a parked trailer for as long as there is air pressure remaining in the air tanks, so wheel chocks will ensure safety.
13 . An Anti-Lock Braking System (ABS):
Assists with the operation of brake lights.
The function of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up during hard braking.
14 . 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.
See the exact questions that will be on the 2025 Tennessee DMV exam.
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2025 Tennessee | Frequently Asked Questions
To secure a CDL Doubles/Triples endorsement in Tennessee, you must already have a Commercial Driver’s License (CDL). You will need to pass the Doubles/Triples Knowledge test. Study the relevant section in the TN CDL manual before taking the test. Once you pass, the endorsement will be added to your CDL.
To obtain a CDL Doubles/Triples license, you must have a valid Commercial Driver’s License (CDL). You'll also need to pass the Doubles/Triples Knowledge test. This test covers the specific skills and knowledge needed to safely operate such vehicles. Studying the relevant sections of your state's CDL manual will help you prepare for this test.
While you don't necessarily need specialized experience or training to get a CDL Doubles/Triples endorsement, it's highly recommended. You must pass the Doubles/Triples Knowledge test, so studying the relevant sections of your state's CDL manual is crucial. Some choose to attend a CDL training school for hands-on experience before taking the test.
Yes, to acquire a CDL Doubles/Triples endorsement, you must pass the Doubles/Triples Knowledge test. This test evaluates your knowledge of safely operating double and triple trailers, coupling and uncoupling, inspecting doubles and triples, and more. It's crucial to study the relevant sections of your state's CDL manual thoroughly before taking the test.
The CDL Doubles/Triples endorsement test is primarily a written exam, focusing on your knowledge rather than specific driving maneuvers. It covers areas such as coupling and uncoupling, inspecting doubles and triples, and the specifics of managing these larger vehicles. However, it's beneficial to practice driving these larger vehicles for real-world application of these principles.
No, it is not permissible to operate double/triple trailers without a valid CDL Doubles/Triples endorsement in Tennessee. The state requires drivers to obtain this endorsement to ensure they have the necessary knowledge and skills to safely operate such vehicles. Violating this requirement can result in penalties and potential suspension of driving privileges.
You can add the CDL Doubles/Triples endorsement to your existing commercial driver's license. You don't need to initiate a new application for a separate license. However, you must pass the Doubles/Triples Knowledge test to get this endorsement. It's important to check with your local DMV for specific state requirements and procedures.
Yes, there are limitations. A CDL Doubles/Triples endorsement only permits you to drive vehicles with more than one trailer. However, it doesn't allow you to operate other special vehicle types like buses or tank vehicles unless you have the specific endorsements for those. Also, all federal and state regulations regarding hours of service, vehicle maintenance, and load securement must still be followed.
In Tennessee, the maximum legal weight for a vehicle including double/triple trailers is 80,000 pounds. The maximum length for each semi-trailer is 28 feet 6 inches, and for each full trailer it's 28 feet. However, these restrictions can vary depending on road types and specific routes. Always check local regulations to ensure compliance.
Yes, drivers with a CDL Doubles/Triples endorsement must adhere to specific safety regulations. These include performing routine vehicle inspections, following appropriate coupling and uncoupling procedures, and maintaining safe following distances. They must also understand the high rollover risk associated with these vehicles and the effects of speed and curves on stability. Compliance with these guidelines helps ensure road safety.
