Air Brakes #2

FREE Air Brakes Endorsement Test Online | Maryland 2024

Train for FREE online with our Maryland 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 MD Class A/Class B driver license in 2021, practice as much as..

Train for FREE online with our Maryland 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 MD 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 . Most heavy-duty vehicles use ____ air brake systems.

Quad The majority of heavy-duty vehicles are equipped with dual air brake systems.

2 . Air tank drains should:

In an air brake system, air tank drains are used to remove water and compressor oil from the air tanks. When operating a drain, be sure to drain the tank completely.

3 . What is removed when an air tank is drained?

Chlorine In an air brake system, the air storage tanks are equipped with drains to allow water and compressor oil to be removed. The water and oil can damage the brakes if left to accumulate in the system.

4 . The air compressor governor controls:

The speed of the vehicle. In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.

5 . You should test the low pressure warning signal by:

It is essential that your low pressure warning light functions properly. After allowing the system to charge, you can test the warning signal by rapidly applying and releasing the brake pedal. This will release air from the braking system and the warning signal should come on when pressure drops to a dangerous level.

6 . Brake fade is a result of:

If brakes are overused, they can become too hot. This overheating causes them to fade, making them less effective at slowing the vehicle.

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