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Arizona Air Brakes CDL Practice Test

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Why is it necessary to have a functional air compressor governor?
Correct Answer:
It maintains proper air pressure in the braking system
Explanation:
Having a functional air compressor governor is essential because it maintains the proper air pressure in the braking system. The governor automatically regulates when the compressor should start and stop based on the air pressure in the system. This ensures that the air tanks reach the necessary pressure levels to operate the air brakes effectively and safely. If the air pressure is too low, the braking systems may not function properly, which could lead to unsafe driving conditions. On the other hand, maintaining the right pressure helps in the efficient operation of the brakes, promoting both safety and reliability. The governor plays a critical role in this regulation, ensuring that the system is neither over-pressurized nor under-pressurized.

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