Question Broken yellow lines are used on streets and highways to: Answers Indicate no passing zones. Separate lanes of traffic moving in the same direction. Separate lanes of traffic moving in opposite directions. Explanation Yellow lines separate traffic moving in opposite directions. Dashed lines on the pavement indicate that passing is permitted when safe. Pass your DMV Written Test with flying colors Take me to the cheat sheet Iowa This questions appears in the following tests: Alabama Practice Test 21 Alabama Practice Test 40 Arizona Practice Test 16 Arkansas Practice Test 14 California Practice Test 29 Connecticut Practice Test 12 Delaware Practice Test 20 Georgia Practice Test 17 Iowa Practice Test 27 Iowa Practice Test 10 Kansas Practice Test 20 Kentucky Practice Test 40 Kentucky Practice Test 12 Maine Practice Test 41 Maryland Practice Test 24 Mississippi Practice Test 4 Mississippi Practice Test 10 Nebraska Practice Test 4 South Carolina Practice Test 7 South Dakota Practice Test 16 Tennessee Practice Test 7 Wisconsin Practice Test 6 Wyoming Practice Test 23 Wyoming Practice Test 49 California Practice Test 42