Air Brakes #2
Air Brakes Endorsement Test | Ohio 2025 #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 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 . 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.
2025 Ohio | Frequently Asked Questions
To acquire a CDL Passenger endorsement in Ohio, you must first have a valid Ohio CDL. Then, pass the Passenger Transport written test. Next, you need to complete a training course specific to passenger transport. Finally, pass the skills test in the type of vehicle you'll be driving. The Ohio BMV can provide more detailed information.
To obtain a CDL Passenger license in Ohio, you must be at least 21 years old, possess a valid Ohio CDL, and pass both the Passenger Transport written and skills tests. You should also complete a passenger transport training course. Additionally, you must have a clean driving record and pass a medical examination.
Yes, to secure a CDL Passenger endorsement in Ohio, you need specific training. You must complete a passenger transport training course and pass the Passenger Transport written and skills tests. No specific experience is required, but having a clean driving record and familiarity with driving large vehicles can be beneficial.
Yes, additional written tests and exams are mandatory for the CDL Passenger endorsement in Ohio. Applicants must successfully pass the Passenger Transport written test and a skills test, which includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving exam. These tests ensure applicants can safely operate passenger vehicles.
During the CDL Passenger endorsement assessment in Ohio, you will need to demonstrate skills such as pre-trip vehicle inspection to ensure safety, basic vehicle control including starting, stopping, and turning, and on-road driving skills like lane changes, highway driving, and interaction with traffic. You'll also need to show passenger safety knowledge such as proper loading/unloading procedures.
No, you cannot legally transport passengers in Ohio without a valid CDL Passenger endorsement. This endorsement is necessary if you're operating a vehicle designed to carry 16 or more passengers, including the driver. Driving such vehicles without the correct endorsement could lead to serious legal consequences, including fines and suspension of your commercial driving privileges.
Yes, you can add a CDL Passenger endorsement to your existing CDL in Ohio. You don't need to apply for a new CDL. However, you must pass the written knowledge test for passenger transport and pay the required fees. Once you successfully complete these steps, the endorsement will be added to your existing CDL.
Yes, there are certain restrictions for drivers with a CDL Passenger endorsement in Ohio. You must not have more than two moving violations or preventable accidents in the last two years, you cannot have a DUI conviction within the last five years, and you must pass a physical exam every two years to maintain your CDL Passenger endorsement.
Yes, there are age-related prerequisites for acquiring the CDL Passenger endorsement in Ohio. You must be at least 21 years old to drive a commercial vehicle across state lines or carry hazardous materials. However, you can get a CDL at 18 if you only plan to drive within the state of Ohio.
With a CDL Passenger endorsement in Ohio, you're eligible to operate vehicles like buses, shuttles, and other vehicles designed to carry 16 or more passengers, including the driver. This endorsement also allows you to drive vehicles used for transporting passengers for commercial purposes, such as city buses, school buses (with proper school bus endorsement), and commercial motor coaches.