New Jersey Air Brakes Practice Test

Question: 1 / 400

When should the air compressor be operational in an air brake system?

When the vehicle is parked

Constantly, regardless of driving conditions

Only when the brakes are being applied

As needed to maintain proper air pressure

The air compressor in an air brake system is designed to maintain the necessary air pressure for the brake system to function effectively. It does this by automatically engaging when the air pressure drops below a certain threshold, ensuring that there is enough air stored in the brake system for safe operation. This action is controlled by the system's pressure regulators and is only activated as needed to maintain proper air pressure levels.

Having the compressor operational only when needed helps to conserve energy and reduce wear on the compressor itself. If the air compressor were to run constantly or only when the brakes are applied, it could lead to issues such as overheating or insufficient air supply during critical braking situations. Thus, the correct operation of the compressor is essential for both the performance and longevity of the air brake system.

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