Air Brakes #1
Air Brakes Endorsement Test | Kentucky 2024 #1 Page 4 of 4
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 2024, 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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19 . Failing to drain air tanks could result in:
In an air brake system, the air tanks must be periodically drained to remove accumulations of water and compressor oil. If water is not removed, it could freeze in cold weather and cause brake failure.
20 . Air tank drains:
Compressed air in an air brake system usually has a certain amount of water and oil in it. This can harm the system if allowed to accumulate. Air tanks have drain valves to aid in removing water and oil from the compressed air.
21 . Once the air tanks are at an air pressure level of 125 psi, the air compressor governor will:
An air compressor governor will stop the compressor from pumping air once the air tanks are at an air pressure level around 125 psi. This air pressure level is referred to as the "cut-out" level.
22 . When you are about to start down a hill, you should switch into a ____ gear.
Before starting down a hill, be sure to switch into a low gear. Gravity will increase your vehicle's speed as you travel downhill.
23 . ____ 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.
24 . How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?
A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.
25 . The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:
When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.
See the exact questions that will be on the 2024 Kentucky DMV exam.
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2024 Kentucky | Frequently Asked Questions
A CDL Class A license in Kentucky allows drivers to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more, provided the towed vehicle is heavier than 10,000 lbs. This typically includes tractor-trailers, truck and trailer combinations, flatbeds, livestock carriers, and tank vehicles.
A Class A CDL license in Kentucky permits the operation of vehicles such as tractor-trailers, truck and trailer combinations, tanker vehicles, livestock carriers, and flatbeds. Essentially, it allows you to drive any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 lbs or more where the towed vehicle is over 10,000 lbs.
To obtain a Class A CDL license in Kentucky, applicants must be at least 18 years old for intrastate driving and 21 for interstate. They must pass a vision test, hold a regular driver's license, complete a CDL General Knowledge test and any relevant endorsement tests. A skills test in the vehicle type that the driver's license will be issued for is also required.
In Kentucky, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Kentucky only). However, to drive across state lines or handle hazardous materials, you must be at least 21 years old.
Endorsements are not required for a Class A CDL license, but they can expand your driving capabilities. For example, a Hazardous Materials (H) endorsement allows you to haul hazardous materials, while a Tank Vehicle (N) endorsement lets you drive tank vehicles. Obtaining these endorsements requires additional knowledge and skills tests.
The Class A CDL skills test in Kentucky encompasses three parts: a vehicle inspection test, a basic controls test, and a road test. The vehicle inspection test checks your ability to assess the safety of your vehicle. The basic controls test evaluates your ability to maneuver and control the vehicle. The road test assesses your on-road driving skills.
Yes, Class A CDL license holders in Kentucky may face limitations based on their specific endorsements or restrictions. For instance, if you lack a passenger or school bus endorsement, you're prohibited from driving those vehicles. Also, if you have an air brake restriction, you cannot operate vehicles with air brakes. Other restrictions may apply based on medical evaluations or driving tests.
In Kentucky, the written Class A CDL test is primarily administered in English. However, some locations may offer the test in Spanish. It's important to note that all drivers must understand English to a degree that allows them to communicate with officials and read road signs, as per federal regulations.
Yes, you can request accommodations for the Class A CDL written test in Kentucky if you have a disability. Contact the Kentucky Division of Driver Licensing and provide documentation of your disability. They will guide you through the process to ensure your testing environment meets your needs. Accommodations may include extra time, a separate room, or assistive technology.
Yes, if you fail the Class A CDL written test in Kentucky, you can retake it. There is a waiting period of one day before you can try again. You will need to pay the testing fee each time. It's recommended to study the CDL manual thoroughly before your next attempt to increase your chances of passing.
