Question This white sign means: Answers You should slow down and move to the right lane. Stay in the right lane if you are driving more slowly than other traffic. Slower traffic must exit on the right. Explanation A white, rectangular sign indicates that you must obey important rules. This sign means that drivers should allow the left lane to remain open, when possible, for passing and for faster traffic. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: California Practice Test 40 California Practice Test 32 Alabama Practice Test 92 Arizona Practice Test 81 Arkansas Practice Test 10 California Practice Test 102 Connecticut Practice Test 100 Delaware Practice Test 2 Georgia Practice Test 74 Illinois Practice Test 79 Kansas Practice Test 49 Kentucky Practice Test 47 Maryland Practice Test 93 Mississippi Practice Test 42 South Dakota Practice Test 2 Tennessee Practice Test 67 Wyoming Practice Test 107