ASE S4 Brakes (School Bus) Practice Questions - ASE S4 - Brakes (School Bus) Certification Exam

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What is the primary purpose of the one-way check valves located between the wet reservoir and the primary and secondary reservoirs?

To prevent loss of stored air from one reservoir if another reservoir or the supply line fails To regulate the governor cut-in and cut-out pressures To exhaust moisture automatically from the wet tank To balance pressure between the front and rear brake circuits during a stop

Correct Answer:

To prevent loss of stored air from one reservoir if another reservoir or the supply line fails

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