ASE H4 Brakes (Transit Bus) Practice Questions - ASE H4 - Brakes (Transit Bus) Certification Exam

On a transit bus, what is the primary function of the air compressor governor?

Maintain reservoir pressure between cut-in and cut-out by loading and unloading the compressor Reduce supply-line pressure for the secondary brake circuit Open the spring-brake exhaust during a parking-brake application Time the rate of brake-chamber pressure rise to meet FMVSS 121

Correct Answer:

Maintain reservoir pressure between cut-in and cut-out by loading and unloading the compressor

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