FREE Air Brakes Endorsement Test Online | Rhode Island 2024

Train for FREE online with our Rhode Island 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 RI Class A/Class B driver license in 2021, practice as much as.. Read More

Train for FREE online with our Rhode Island 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 RI 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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1 . A wig wag is:

Vehicles with air brakes are required to be equipped with a low pressure warning device. A wig wag is a type of low air pressure warning device. This device drops a mechanical arm into the driver's view if the pressure in the tanks drops to a level between 55 and 75 psi.

2 . Why should you regularly drain the air tanks?

Compressed air usually contains a certain amount of moisture and compressor oil, which can build up in the air storage tanks and damage the brake system. The tanks should be drained to clean out these accumulations. On a tank with a manual drain valve, draining should be performed at the end of each day of driving.

3 . A driver can rely on front wheel braking to work:

Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.

4 . On flat surfaces, wheel chocks:

In situations where a driver cannot use a parking brake, wheel chocks can be used to hold a parked vehicle in place on a level surface.

5 . The air storage tanks:

The air storage tanks in an air brake system store compressed air to be used for braking. They hold enough air for the brakes to still be used several times if the compressor stops working.

6 . 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.

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