Fanning the brakes down further after the alarm and buzzer come on should result in the parking brake popping out for a single vehicle, and the parking brake and the trailer air supply popping out for a combination vehicle at?
·This test will prepare you for the
internal and external portions of the vehicle inspection exam, where you will
be expected to be able to walk around your vehicle, touch items and explain to
the examiner why items must be inspected before a trip.