iFahrer - Führerschein Vorbereitung APP
Interactive preparation for the driving license test
Technical aspects / 2.7.06-313
You park a trailer with compressed air-braking system for a short period. How can you disengage the service brake of the trailer?
By activating the release valve
By venting the brake line
By releasing the parking brake
By activating the release valve
By venting the brake line
By releasing the parking brake
Learn more by downloading app
