Answer :
Final answer:
The one-way check valve is responsible for keeping the air in the tanks in case of a leak in the air system. The emergency relay valve activates the brakes in case of sudden loss of air pressure. The tractor protection valve helps prevent further air loss if there is a leak or separation between the tractor and the trailer.
Explanation:
The one-way check valve is designed to prevent air from flowing back into the tanks if the air system develops a leak. It allows air to flow into the system but not out. This ensures that the air pressure in the tanks is maintained even if there is a leak in the air system.
On the other hand, the emergency relay valve is responsible for applying the brakes in case of a sudden loss of air pressure. It does not keep the air in the tanks, but rather activates the brakes to bring the vehicle to a stop if there is a significant loss of air pressure.
The tractor protection valve is a safety valve that is responsible for isolating the tractor's air supply from the trailer if there is a leak or a separation between the tractor and the trailer. It does not directly keep the air in the tanks but helps prevent further loss of air from the system.
The governor is a device that controls the air pressure in the tanks. It regulates the flow of air into the tanks from the compressor and shuts off the compressor when the desired pressure is reached. While it helps maintain the air pressure, it does not specifically keep the air in the tanks in case of a leak.
