ASE T4 Brakes (Medium Heavy Truck) Practice Questions - ASE T4 - Brakes (Medium Heavy Truck) Certification Exam

An air dryer with a desiccant cartridge is installed on a tractor. What is its main purpose?

To remove moisture and oil from the compressed air before it enters the reservoirs To regulate brake application pressure To warm the air to prevent valve freeze-up only To increase compressor output pressure

Correct Answer:

To remove moisture and oil from the compressed air before it enters the reservoirs

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