Question When should you use your horn? Answers Whenever it may help prevent a collision. To get other drivers moving in a traffic jam. When you're angry with another driver. If you are saying hello to a fellow driver. Explanation People cannot see you unless they are looking your way. Your horn may get their attention. Use it whenever it will help prevent a collision. Pass your DMV Written Test with flying colors Take me to the cheat sheet Massachusetts This questions appears in the following tests: Massachusetts Practice Test 20 Massachusetts Practice Test 13