Air Brakes #1
Air Brakes Endorsement Test | Ohio 2025 #1
Train for FREE online with our Ohio 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 OH 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 . A slack adjuster should move no more than ____ from where it is attached to the push rod.
Before a trip, you should check each slack adjuster after parking, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure that they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.
2 . 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.
3 . Friction in an S-cam brake is caused when the brake shoes and linings:
Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.
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 . If using spring brakes when hauling a heavy load, a complete stop will:
Spring brakes do not work on all axles. If your vehicle's spring brakes activate due to low pressure in an air brake system, your vehicle will need a longer distance to stop than usual, especially if you are carrying a heavy load.
6 . What is brake lag?
Because air takes time to flow through the air lines to the brakes, air brakes cannot begin working instantly. There is often a brake lag of at least one-half of a second between the moment the brake pedal is pressed and the moment the brakes begin to work.
See the exact questions that will be on the 2025 Ohio 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 Ohio | Frequently Asked Questions
To secure a CDL Bus endorsement in Ohio, you must first have a valid Ohio CDL. Then, pass the Passenger Endorsement Knowledge Test and the School Bus Endorsement Knowledge Test. You also need to complete a School Bus Driver Physical Examination every two years. Lastly, undergo a Federal Background Check and submit your fingerprints for an FBI criminal records check.
Obtaining a CDL Bus license involves several steps. You must first have a valid driver's license, pass the CDL General Knowledge Test, and obtain a Commercial Learner's Permit (CLP). After holding the CLP for 14 days, you can take the CDL Road Skills Test. Passing this allows you to get a CDL. Finally, pass the Passenger and School Bus Endorsement Tests to get your Bus license.
Yes, specific training is necessary for a CDL Bus endorsement in Ohio. You must pass a written passenger endorsement test and get hands-on experience driving a bus under supervision. Additionally, you must pass a skills test in a bus similar to the one you'll be driving. Training programs are available at many community colleges and vocational schools.
CDL Bus licenses fall under Class B or Class C. Class B is for vehicles designed to transport 24 passengers or more, including the driver. This includes school buses, city buses, and tour buses. Class C is for vehicles designed to carry 16 to 23 passengers, including the driver. This includes smaller school buses, shuttle buses, or church vans.
No, you cannot use your personal vehicle for the CDL Bus driving test. The vehicle you use for the test should match the class of CDL you are trying to obtain. For instance, if you're applying for a bus endorsement, you must take the test in a bus. This ensures you can handle the type of vehicle you will be driving professionally.
The CDL Bus driving test evaluates skills such as pre-trip vehicle inspection, basic vehicle control, and on-road driving. You may be required to show ability to parallel park, make right and left turns, merge to traffic, navigate through intersections and railroad crossings, and properly load/unload passengers. The test also checks your knowledge of safety procedures and emergency situations.
Yes, in Ohio, in addition to passing the written and skills tests, you must also pass a Department of Transportation (DOT) physical examination. This ensures that you are physically qualified to operate a commercial vehicle. The exam assesses your vision, hearing, blood pressure, and medical history. You'll receive a DOT medical card if you pass, which is a requirement for the CDL Bus endorsement.
No, it's not permissible to transport passengers without a valid CDL Bus endorsement. In Ohio, as in other states, driving a commercial vehicle like a bus without the appropriate endorsement is illegal and can result in fines, penalties, or suspension of your CDL. The bus endorsement ensures that drivers are adequately trained to transport passengers safely.
In Ohio, you can add a CDL Bus endorsement to your existing license. You don't need to apply for a new license. However, you must pass a written passenger vehicle test and a skills test in the type of vehicle you will be driving. Once you pass these tests, the endorsement will be added to your existing CDL.
Yes, there are restrictions. Drivers with a CDL Bus endorsement must comply with all federal and state regulations, including maintaining a logbook of hours, taking required rest periods, passing regular vehicle inspections, and complying with drug and alcohol testing rules. Additionally, they must not exceed the passenger capacity of their vehicle as it can lead to serious safety issues.
