Air Brakes #1
Air Brakes Endorsement Test | Kentucky 2025 #1
Train for FREE online with our Kentucky 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 KY 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 . An alcohol evaporator is especially important:
Some air brake systems contain an alcohol evaporator. This evaporator introduces alcohol into the system to help prevent ice from forming in cold weather.
2 . A safety valve is set to open at ____ pounds per square inch (psi).
The safety valve protects air tanks and the rest of an air brake system from accumulating too much air pressure. The safety valve is usually set to open at 150 psi.
3 . What is often found in compressed air?
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.
4 . During an applied leakage test, the maximum leakage rate for a double combination vehicle is ____ in a minute.
It is important to know the maximum air loss rate that is safe for your specific vehicle. A double combination vehicle should have a leakage rate no higher than 4 psi in a minute during an applied leakage test.
5 . Brakes can get out of adjustment quickly, especially:
Brakes are particularly prone to getting out of adjustment if they are hot. Be sure to routinely check the adjustment of your brakes. For a vehicle to be safely controlled, all brakes must be properly functioning and adjusted.
6 . A driver can rely on front wheel braking to work:
Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.
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2025 Kentucky | Frequently Asked Questions
To secure a CDL Bus endorsement in Kentucky, you must first have a CDL license. You then need to pass a passenger endorsement test that includes multiple-choice questions. Additionally, you'll have to pass a skills test in a vehicle similar to the one you'll be driving. Remember, you must also maintain a clean driving record.
To obtain a CDL Bus license in Kentucky, you need to be at least 21 years old, possess a valid driver's license, and pass a vision test. You'll also have to pass a written knowledge test and a skills test, which includes a pre-trip vehicle inspection, basic vehicle control, and on-road driving. Lastly, you must submit a medical examiner's certificate.
Yes, specific training is necessary for a CDL Bus endorsement in Kentucky. You must complete a commercial driver's license training program, which includes classroom instruction and hands-on driving experience. This program prepares you for the written knowledge and skills tests required by the Kentucky Transportation Cabinet's Division of Driver Licensing.
CDL Bus licenses in Kentucky fall into three classifications: Class A, B, and C. Class A is for vehicles with a combined weight over 26,001 lbs., where the vehicle being towed is over 10,000 lbs. Class B is for single vehicles weighing over 26,001 lbs. Class C is for vehicles designed to transport 16 or more passengers, including the driver.
No, you cannot use a personal vehicle for the CDL Bus driving test in Kentucky. The vehicle used must match the class of CDL you are attempting to obtain. For a bus endorsement, you must test in a bus of appropriate size. This ensures that you can handle the specific type of commercial vehicle you will be driving.
During the CDL Bus driving test in Kentucky, you'll be assessed on a variety of skills including: pre-trip vehicle inspection, basic vehicle control (such as turning, reversing, and parking), and on-road driving. The latter includes navigating intersections, railway crossings, and curves; highway driving; and responding to traffic signs and signals. You'll also be evaluated on proper passenger loading and unloading procedures.
Yes, to obtain a CDL Bus endorsement in Kentucky, you must pass a Department of Transportation (DOT) physical examination every two years. The exam assesses your general health, hearing and vision capabilities, and ability to manage conditions like diabetes or high blood pressure. You must also be free from any condition that may impair your ability to safely operate a vehicle.
No, it is not permissible. In Kentucky, to legally transport passengers in a vehicle designed to carry 16 or more people, including the driver, you must have a valid Commercial Driver's License (CDL) with a passenger (P) endorsement. Driving without the proper license and endorsement can result in significant fines, penalties, or even jail time.
In Kentucky, you can add a CDL Bus endorsement to your existing Commercial Driver's License (CDL). However, you must pass the passenger endorsement knowledge test and skills test in a vehicle representative of the class of bus you wish to drive. It's not an entirely new application, but additional testing is required.
Yes, there are restrictions for drivers with a CDL Bus endorsement in Kentucky. The driver must not have more than one serious traffic violation within a three-year period. Also, they cannot have any alcohol-related convictions within the past three years. Drivers must also maintain a valid Department of Transportation medical card.
