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What is the purpose of the tractor protection valve in the air brake system?

A. To regulate tire pressure
B. To close automatically in low air pressure conditions
C. To control engine temperature
D. To adjust brake pedal sensitivity

Answer :

Final answer:

The purpose of the tractor protection valve in the air brake system is to close automatically in low air pressure conditions and protect the tractor from brake failure. So the correct option is B .

Explanation:

The tractor protection valve in the air brake system serves the purpose of closing automatically in low air pressure conditions. It is designed to protect the tractor or towing vehicle from potential brake failure due to inadequate air pressure. When the air pressure in the system drops below a certain threshold, the tractor protection valve isolates the towing vehicle from the trailer, preventing any potential brake system failures from affecting the tractor.

The purpose of the tractor protection valve in the air brake system is to close automatically in low air pressure conditions to prevent air loss from the tractor and ensure safe stopping of the vehicle.

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Rewritten by : Barada