Answer :
Final answer:
The safety relief valve protects the air brake system from too much pressure by venting excess air to the atmosphere when the system reaches a preset level.
Explanation:
What protects the air brake system from too much pressure? The correct answer is D) Safety relief valve. Air brake systems in vehicles are critical for safety, and it is vital that they operate within a safe pressure range. A safety relief valve serves as a protective device that is designed to open and vent excess air pressure to the atmosphere once the system pressure reaches a preset level. This prevents any potential damage or failure due to over-pressurization. It's essential for maintaining the integrity and proper functioning of the air brake system.
By contrast, a pressure regulator valve generally controls the pressure to a desired level but does not necessarily vent excess pressure. The brake pedal activates the braking system but does not control pressure. An air compressor generates pressure but again does not limit it. Thereby, the only component designed specifically to protect against too much pressure is the safety relief valve.
