Question If your brakes fail on a downgrade, your best hope to stop is to: Answers Use an escape ramp. Use the shoulder. Drift to a stop. Explanation If your brakes fail on a downgrade, you will have to look outside your vehicle for a way to stop. Using an escape ramp is the safest way to stop your vehicle. Take a FREE Practice Test Now This questions appears in the following tests: Alabama Knowledge Test Class A , Idaho Knowledge Test Class A , Iowa Knowledge Test Class A , Hawaii Passenger ,