Knowledge Test Class B #1
Class B Driving Test | Tennessee 2026 #1 Page 3 of 7
Train for FREE online with our Tennessee class B license 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 CDL class B permit in 2026, 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 CDL class B requirements may vary from state to state.
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15 . How soon after starting a trip must cargo securement be checked?
Cargo should be inspected before beginning a trip, within the first 50 miles of the trip, and every three hours or 150 miles traveled thereafter. The driver of a truck transporting cargo is responsible for the cargo being safely secured throughout the trip.
16 . A posted maximum speed limit:
You should never drive faster than posted speed limits. For safety, you should slow down as conditions require.
17 . If caught driving a CMV with a blood alcohol content (BAC) of 0.02 percent, a driver will be:
Put on probation.
If you are found to be driving with any detectable amount of alcohol in your system, but are still below the legal limit of 0.04 percent, you will put out-of-service for a period of 24 hours.
18 . When driving in hot weather:
Because air pressure increases as air expands in the heat, it is important to monitor your tire pressure when driving in very hot weather. To prevent the engine from overheating, there must be an adequate amount of oil in the engine, as well as enough water and antifreeze in the cooling system. Antifreeze is helpful for the engine in both hot and cold weather.
19 . Which of the following is a time when the vehicle should be downshifted?
It is particularly important that you downshift before starting down a hill or entering a curve.
20 . When driving in fog, you should:
Use the heater.
If you must drive in fog, you should use your low beam headlights and fog lights to maximize your visibility. Using high beam lights will only make it more difficult for you to see.
21 . During a trip, which of the following does not need to be checked regularly?
Seat cushion
During a trip, you should regularly monitor the instruments, gauges, meters, and mirrors. Check the tires, cargo, and lights for signs of trouble.
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2026 Tennessee | Frequently Asked Questions
A CDL Class B license in Tennessee allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, and any vehicle designed to transport 16 to 23 passengers, including the driver.
With a Class B CDL license in Tennessee, you can operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or tow a vehicle not heavy than 10,000 pounds. It includes straight trucks, large passenger buses, segmented buses, box trucks, dump trucks with small trailers, and trucks with small trailers.
To acquire a Class B CDL license in Tennessee, you must be at least 21 years old (or 18 for in-state transport only), possess a valid Tennessee driver's license, pass a vision test, and complete a Commercial Driver License Application. You also need to pass a written knowledge test and a skills test which includes pre-trip vehicle inspection, basic controls, and on-road driving.
In Tennessee, you must be at least 21 years old to qualify for a Class B CDL license for interstate commerce. However, if you plan to drive only within the state (intrastate commerce), you can obtain a Class B CDL license at the age of 18.
While specific endorsements are not necessary to obtain a basic Class B CDL license, they can enhance your licensure. Endorsements certify you to drive certain types of vehicles or transport specific cargo. For instance, a passenger or school bus endorsement allows you to drive such vehicles, while a hazardous materials endorsement permits you to transport hazardous cargo.
The Class B CDL skills assessment in Tennessee includes three parts: a pre-trip vehicle inspection to verify that you can assess if your vehicle is safe to drive, a basic vehicle controls test to check your ability to control the vehicle, and an on-road driving test to examine your practical driving skills in various traffic situations and conditions.
Yes, Class B CDL license holders in Tennessee are limited to operating single vehicles with a GVWR of 26,001 or more pounds, or a towed vehicle not exceeding 10,000 pounds GVWR. They are not authorized to drive a Class A vehicle unless they upgrade their license. Endorsements may be required for certain types of vehicles like school buses or tank vehicles.
In Tennessee, the written Class B CDL test is generally administered in English. However, the state may offer the test in other languages. It's recommended to contact the Tennessee Department of Safety & Homeland Security for specific information on language availability for the written test.
Yes, in Tennessee, you can request accommodations for the Class B CDL written exam if you have a disability. The Department of Safety and Homeland Security works to ensure all testing materials and methods are accessible. You should contact your local Driver Services Center in advance to discuss your needs and arrange appropriate accommodations.
If you fail the Class B CDL written test in Tennessee, you can retake it. However, you must wait at least one day before attempting the test again. There is no limit to the number of times you can retake the test, but a fee applies each time. It's recommended to study thoroughly before retesting.
