Air Brakes #2
Air Brakes Endorsement Test | Ohio 2024 #2 Page 4 of 4
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 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 . What helps prevent wheel lockup when braking?
The purpose of an Anti-Lock Braking System (ABS) is to prevent wheel lockup while brakes are being applied.
20 . What should happen before the air pressure in an air brake system tank falls below 55 psi?
The low air pressure warning signal must activate before the air supply pressure drops below 55 psi in the air tank. If the warning signal does not turn on when being tested during an inspection, the vehicle is not safe to drive.
21 . 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.
22 . 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.
23 . What do air brakes use to make the brakes work?
Many large CMVs are equipped with air brakes. An air braking system uses compressed air to operate.
24 . 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.
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.
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2024 Ohio | Frequently Asked Questions
A CDL Class A license in Ohio is a commercial driver's license that permits the holder to operate any combination of vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle(s) being towed exceeds 10,000 pounds. It typically includes vehicles like tractor-trailers, truck and trailer combinations.
A Class A Commercial Driver's License (CDL) in Ohio allows you to operate any combination of vehicles with a Gross Combination Weight Rating (GCWR) of 26,001 pounds or more, provided the Gross Vehicle Weight Rating (GVWR) of the vehicle(s) being towed is over 10,000 pounds. This typically includes tractor-trailers, truck and trailer combinations, and tank vehicles.
To obtain a Class A CDL license in Ohio, you must be at least 18 years old (21 for interstate driving), possess a valid Ohio driver's license, pass a vision test, and successfully complete a written knowledge test. You'll also need to pass a skills test, which includes pre-trip vehicle inspection, basic vehicle control, and on-road driving.
In Ohio, you must be at least 18 years old to qualify for a Class A Commercial Driver's License (CDL) for intrastate driving (within Ohio only). However, if you plan to drive interstate (across state lines) or haul hazardous materials, you must be at least 21 years old.
While specific endorsements aren't required for a Class A CDL license in Ohio, they can expand your driving opportunities. Endorsements include T (Double/Triple Trailers), P (Passenger), N (Tank Vehicles), H (Hazardous Materials), and X (Combination of Tank Vehicle and Hazardous Materials). Each endorsement requires passing additional knowledge and/or skills tests.
The Class A CDL skills test in Ohio encompasses three main areas: pre-trip vehicle inspection, basic vehicle control, and on-road driving. The pre-trip inspection tests your ability to assess the safety of your vehicle. Basic vehicle control evaluates your ability to maneuver and control the vehicle. The on-road driving test assesses your ability to safely operate the vehicle in various traffic situations.
Yes, Class A CDL license holders in Ohio may face certain restrictions based on their skills and the type of vehicle they're licensed to operate. For instance, drivers may be restricted to operating automatic transmission vehicles only, or prohibited from driving tractor-trailers with fifth wheel connections, among others. These limitations are usually specified on the license.
Yes, in Ohio, the written Class A CDL test is available in multiple languages besides English. However, federal regulations require all CDL applicants to understand and read English to ensure they can comprehend traffic signs and communicate with the public and law enforcement. Therefore, a basic understanding of English is still necessary.
Yes, you can request accommodations for the Class A CDL written test in Ohio if you have a disability. The Bureau of Motor Vehicles (BMV) in Ohio is committed to ensuring that its services are accessible to all individuals. It's recommended to contact your local BMV office in advance to discuss your specific needs and possible accommodations.
Yes, if you don't pass the Class A CDL written test in Ohio, you can retake it. However, you'll have to wait at least 24 hours before attempting the test again. Note that there may be additional fees for each retake. It's recommended to study thoroughly to increase your chances of passing on the next attempt.
