Traction is important in: Question Traction is important in: Answers Safe braking. Properly using turn signals. Operating the horn. Explanation You will not be able to brake or steer your vehicle without adequate traction. Ensure that your tires are in proper working condition before beginning a trip. This questions appears in the following tests: Alaska Class B Knowledge Test Arizona Passenger Connecticut Tank Idaho Class A Knowledge Test Iowa Class A Knowledge Test Kentucky Passenger Maryland Class B Knowledge Test Minnesota Class A Knowledge Test Missouri Double New Hampshire Class A Knowledge Test Vermont Class B Knowledge Test