FRA Locomotive Engineer Practice Questions - FRA Certified Locomotive Engineer Exam

A locomotive's feed valve on an automatic air brake system controls which of the following?

The pressure in the brake cylinders during a full-service application The equalization of pressure between the brake pipe and equalizing reservoir The pressure maintained in the brake pipe during release and charge The pressure differential that activates the emergency valve

Correct Answer:

The pressure maintained in the brake pipe during release and charge

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