Question

which air is used in air brake system in heavy vehicles?​

Answer 1

Most types of truck air brakes are drum brakes, though there is an increasing trend towards the use of disc brakes. The air compressor draws filtered air from the atmosphere and forces it into high-pressure reservoirs at around 120 psi (830 kPa; 8.3 bar).

Answer 2

Explanation:

Most types of truck air brakes are drum brakes, though there is an increasing trend towards the use of disc brakes. The air compressor draws filtered air from the atmosphere and forces it into high-pressure reservoirs at around 120 psi (830 kPa; 8.3 bar).

Plz mark my answer as brainliest....