Question Where is the safety relief valve usually located? Answers Near the rear brake Near the front brake In an air tank On the dashboard Explanation An air brake system's safety relief valve is located in the tank that is first to receive air from the compressor. Take a FREE Practice Test Now This questions appears in the following tests: Colorado Knowledge Test Class A , Connecticut Air Brakes , Minnesota Air Brakes , New York Air Brakes , North Carolina Air Brakes , Pennsylvania Air Brakes ,