Your horn should be used to: Question Your horn should be used to: Answers Tell other drivers that you are angry. Warn other drivers that you are near. Frighten other drivers. Explanation Your vehicle's horn is a tool to warn others of your presence. Because the horn may create danger by startling other drivers, you should use it only if necessary. This questions appears in the following tests: Alabama Class A Knowledge Test Arkansas Class B Knowledge Test California Class B Knowledge Test California Class B Knowledge Test Idaho Class B Knowledge Test Idaho Bus Idaho Passenger Kentucky Class B Knowledge Test Maine Class B Knowledge Test Michigan Class A Knowledge Test Missouri Class A Knowledge Test Montana Class A Knowledge Test Ohio Class A Knowledge Test Oklahoma Class B Knowledge Test Rhode Island Class B Knowledge Test Virginia Class A Knowledge Test Wisconsin Passenger