Answer :
Final answer:
Air compressors in air brake systems, largely found in vehicles, usually stop pumping air at around 120 psi to avoid overfilling and over pressurization of the system.
Explanation:
The subject matter of this question pertains to air brake systems in vehicles, particularly the air compressor and the pressure at which it stops pumping air. For most systems, the magic figure is 120 psi. At 120 psi, the air compressor will cut off, stopping the supply of air to the brakes. This is to prevent overfilling and over pressurization that could potentially lead to damage or failure within the air brake system.
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