Ohio Driver's Examination

Air Brakes #1

FREE Air Brakes Endorsement Test Online | Ohio 2024

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 2021, 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.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . A slack adjuster should move no more than ____ from where it is attached to the push rod.

Two inches

Five inches

One inch

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:

Should not be used in cold weather.

Are helpful to remove water and oil from the air tanks.

Are used to move air to the brakes.

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:

Press against the outside of the brake drum.

Press against the inside of the brake drum.

Push against each other.

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.

2 psi

4 psi

6 psi

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:

Be impossible.

Take a long time.

Take a short amount of time.

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?

The time required for the brakes to work after the brake pedal is pressed

The distance between the brake pedal and the floor

The amount of air pressure used to stop the vehicle

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.

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2024 Ohio | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in Ohio, first, you must hold a valid Ohio CDL. Then, pass the Hazmat knowledge test at your local BMV. You'll also need to undergo a TSA background check. Lastly, submit your application with the appropriate fees to the Ohio Bureau of Motor Vehicles (BMV). The endorsement will be added upon approval.

To obtain a CDL Hazmat license, you must have a valid Commercial Driver's License (CDL). You also need to pass the Hazardous Materials Endorsement Knowledge Test. A Transportation Security Administration (TSA) background check is required. Lastly, you must be at least 21 years old and be able to read and speak English adequately.

When applying for a CDL Hazmat endorsement in Ohio, you'll need your current Ohio CDL. You should also have proof of U.S. citizenship or legal status, such as a birth certificate, passport, or immigration documents. Additionally, you'll need to provide your Social Security number and complete a TSA security threat assessment application, which includes fingerprinting and a background check.

Yes, there is a dedicated written test for the CDL Hazmat endorsement. The Hazardous Materials Endorsement Knowledge Test is designed to evaluate your understanding of the rules and regulations of transporting hazardous materials. It covers topics such as loading and unloading, bulk packaging marking, driving and parking rules, and emergency response procedures.

The written test for the CDL Hazmat endorsement covers a variety of subjects related to hazardous materials. These include identifying different types of hazardous materials, understanding shipping papers, placarding rules, loading and unloading procedures, driving and parking rules, emergency response procedures, and how to handle hazardous materials safely and effectively.

Yes, there are additional charges associated with acquiring a CDL Hazmat endorsement in Ohio. These include fees for the knowledge test, endorsement application, fingerprinting, and background check. The exact amount may vary, so it's advised to check with the Ohio Bureau of Motor Vehicles or a local DMV office for current rates.

Yes, obtaining a CDL Hazmat endorsement requires a background check and security clearance. This is mandated by the Transportation Security Administration (TSA). The process includes fingerprinting and a check of criminal, immigration, and mental health records. The goal is to ensure that hazardous materials are transported safely and securely.

Yes, specialized training and certification are mandatory for a CDL Hazmat endorsement in Ohio. Applicants must pass a written knowledge test that covers hazardous materials regulations and safety procedures. Once you pass the test, the endorsement is added to your Commercial Driver's License. This ensures you are equipped with the necessary knowledge to handle hazardous materials.

No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in Ohio. The endorsement is required to ensure the driver understands the safety procedures and regulations related to transporting hazardous materials. Violating this can result in hefty fines, suspension of your CDL, or even imprisonment.

You can add a CDL Hazmat endorsement to your current CDL license without needing a new application. However, you must pass the Hazmat knowledge test and undergo a TSA background check. Once cleared, the Hazmat endorsement will be added to your existing CDL. Remember, your CDL must be valid and in good standing for this process.