Air Brakes #1
Air Brakes Endorsement Test | Kentucky 2025 #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 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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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 2025 Kentucky DMV exam.
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2025 Kentucky | Frequently Asked Questions
To get a CDL Tank endorsement in Kentucky, you first need to have a Commercial Driver's License (CDL). Then, study for the Tank endorsement test using the Kentucky CDL Handbook. Schedule and pass the written test at a Kentucky Driver Licensing Regional Field Office. Upon passing, your Tank endorsement will be added to your CDL.
To obtain a CDL Tank endorsement, you must first possess a valid Commercial Driver's License (CDL). You then need to study for and pass the Tank endorsement written test, which covers specific knowledge related to the safe transport of liquid and gaseous materials. This test is typically administered at your local DMV office.
While specific training or experience isn't mandatory to get a CDL Tank endorsement in Kentucky, it's highly recommended. Understanding the unique handling characteristics of liquid cargo is crucial. Studying the Kentucky CDL Handbook, especially the section on tank vehicles, will help. You'll need to pass a written test to get the endorsement.
Yes, an additional written test is required to obtain a CDL Tank endorsement in Kentucky. This test focuses on the specific knowledge needed for the safe transport of liquid and gaseous materials. It covers topics like inspecting tank vehicles, recognizing hazards, and emergency procedures. The test is administered at your local DMV office.
The written test for the CDL Tank endorsement in Kentucky covers several subjects such as inspecting tank vehicles, understanding the effects of liquid surge on vehicle handling, safe driving rules for tank vehicles, and procedures to follow in case of emergencies or accidents. The goal is to ensure safe and responsible handling of tank vehicles.
The CDL Tank endorsement assessment focuses on knowledge rather than specific maneuvers or skills. It evaluates understanding of safe driving practices, inspecting tank vehicles, handling emergency situations, and procedures for loading and unloading. Practical skills are typically assessed in the general CDL driving test, not in the Tank endorsement test.
Yes, there are limitations and constraints for drivers with a CDL Tank endorsement in Kentucky. Some of the restrictions include carrying hazardous materials, adhering to weight limits, and following specific routes designated for hazardous materials transportation. Additionally, drivers with a Tank endorsement must have proper training and certification to operate vehicles carrying liquid or gaseous cargo.
No, a valid CDL Tank endorsement is required to transport liquid or gas materials in Kentucky. This requirement ensures that drivers have the necessary skills and knowledge to handle such materials safely. Without this endorsement, drivers are not legally permitted to transport these types of materials.
You can add the CDL Tank endorsement to your current license. You don't need to apply for a fresh license. However, you must pass the Tank Vehicle endorsement test that assesses your knowledge of safely hauling liquids or gases in a tank truck. After passing, the endorsement is added to your existing CDL.
Yes, for handling hazardous materials with a CDL Tank endorsement, you must also have a Hazardous Materials (HazMat) endorsement on your CDL. To get a HazMat endorsement, you must pass a specific knowledge test and undergo a federal background check. These regulations are in place to ensure the safe transportation of hazardous materials.
