Question You should use your horn when: Answers Another vehicle is in your way. It may help prevent a collision. Another driver makes a mistake. Explanation Only use your horn when it is necessary to avoid collisions. Do not use your horn if a driver or bicyclist is moving slowly and you want him or her to drive faster or get out of your way. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: Alabama Practice Test 18 Alabama Practice Test 40 Arizona Practice Test 19 Arkansas Practice Test 9 California Practice Test 1 California Practice Test 20 Connecticut Practice Test 2 Delaware Practice Test 6 District Of Columbia Practice Test 11 Georgia Practice Test 25 Illinois Practice Test 30 Kansas Practice Test 9 Kentucky Practice Test 29 Kentucky Practice Test 11 Maine Practice Test 30 Maryland Practice Test 6 Mississippi Practice Test 14 Mississippi Practice Test 23 New Mexico Practice Test 12 Oklahoma Practice Test 13 Rhode Island Practice Test 16 South Carolina Practice Test 3 South Dakota Practice Test 5 Tennessee Practice Test 6 Wisconsin Practice Test 17 Wyoming Practice Test 25 Wyoming Practice Test 42