Air Brakes #1
Air Brakes Endorsement Test | Tennessee 2025 #1
Train for FREE online with our Tennessee CDL air brake 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 Class A/Class B driver 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 the requirements for CDL may vary from state to state.
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1 . Some air brake systems use alcohol:
To reduce the risk of rust forming on air brake valves.
Some air brake systems contain an alcohol evaporator. This device introduces alcohol into the braking system to inhibit the formation of ice.
2 . Air tank drains:
Must remain open while driving.
In an air brake system, the air tanks are equipped with drains that allow water and compressor oil to be removed from the system. If allowed to build up, water and compressor oil can damage an air brake system.
3 . ____ make up the emergency brake system.
In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.
4 . In a dual air brake system:
One system is the main braking system and a second system is ready to be used if the first one fails.
A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines.
5 . Brake linings should be:
Brake linings should not be loose or soaked with oil or grease. They shouldn't be dangerously thin.
6 . Why do you need to drain air tanks regularly?
To remove bad air from the tanks
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Tanks must be drained regularly to remove this build-up.
See the exact questions that will be on the 2025 Tennessee DMV exam.
99.2% of people who use the cheat sheet pass the FIRST TIME
Lillian MCcranie explains how our CDL study guide was helpful in passing the exam and recommends it to everyone.
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2025 Tennessee | Frequently Asked Questions
To secure a CDL Bus endorsement in Tennessee, you must first hold a valid Commercial Driver's License (CDL). Then, pass the Passenger Vehicles endorsement written test, which covers topics like vehicle inspection, loading/unloading passengers, and emergency procedures. After passing the written test, you'll need to pass a skills test in a vehicle similar to the one you'll be driving.
To obtain a CDL Bus license in Tennessee, you need to have a valid driver's license, pass the CDL general knowledge test, and the passenger endorsement test. You also need to pass a medical examination, provide proof of residency and identity, and complete a skills test in the type of vehicle you will be driving. Finally, you must pay the required fees.
Yes, specific training is necessary for a CDL Bus endorsement in Tennessee. Applicants must pass the Passenger Vehicles endorsement written test and a skills test in a vehicle similar to the one they'll be driving. While not required by the state, many choose to attend a professional training school to prepare for these tests and gain practical driving experience.
CDL Bus licenses fall under three classifications: Class A, B, and C. Class A is for vehicles with a combined weight over 26,001 pounds, where the vehicle being towed is over 10,000 pounds. Class B is for single vehicles over 26,001 pounds or towing a vehicle not over 10,000 pounds. Class C covers vehicles designed to transport 16 or more passengers (including the driver), or hazardous material transport.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle used for the test must match the class and type of vehicle you will be driving with your CDL. For a bus endorsement, you would need to take the test in a bus-like vehicle. This ensures you can handle the specific type of vehicle safely.
During the CDL Bus driving test in Tennessee, candidates are evaluated on their ability to inspect their vehicle, manage space around their vehicle, control speed and stop, start and move the bus smoothly and safely. They're also assessed on their ability to turn, merge into traffic, back up the bus, navigate intersections and railroad crossings, and respond to emergency situations.
Yes, for a CDL Bus endorsement in Tennessee, applicants must pass a Department of Transportation (DOT) medical examination. This examination assesses physical and mental health to ensure drivers can safely operate a commercial vehicle. Conditions evaluated include vision, hearing, blood pressure, and medical conditions like epilepsy or heart disease that could impact driving ability.
No, it is not permissible to transport passengers without a valid CDL Bus endorsement in Tennessee. The law requires all drivers who operate a vehicle designed to carry 16 or more passengers, including the driver, to have a Commercial Driver's License (CDL) with a Passenger (P) endorsement. Driving without the proper license or endorsement can lead to serious penalties.
You can add a CDL Bus endorsement to your existing commercial driver's license in Tennessee. You don't need to apply for a new license. However, you must pass the passenger transport test, a pre-trip vehicle inspection test, and a skills test. A road skills test in the type of vehicle you'll be driving is also required.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Tennessee. For instance, bus drivers must comply with hours-of-service regulations, which limit the number of hours they can drive without rest. Additionally, they must maintain a clean driving record and pass regular physical examinations. Violations like DUIs or reckless driving can lead to suspension or revocation of the endorsement.
