FREE Air Brakes Endorsement Test Online | Ohio 2024 Page 3 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 2021, practice as much as.. Read More

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.

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13 . 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.

14 . 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.

15 . 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.

16 . 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.

17 . An application pressure gauge shows:

If a vehicle is equipped, an application pressure gauge shows how much air pressure is being applied to the brakes. This gauge can help a driver identify if their brakes are beginning to fade.

18 . You should ____ if the low pressure warning signal activates while you are driving.

If the low pressure warning signal activates while you are driving, it is important that you safely exit the roadway as soon as possible and park your vehicle. If the air pressure gets too low, the brakes will no longer work well enough for you to stop safely.

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