Question This sign means: Answers Do not drink and drive. Slippery when wet. Road curves ahead. Explanation Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns that the roadway is slippery when wet. This questions appears in the following tests: Alabama Practice Test 5 Alabama Practice Test 20 Arizona Practice Test 10 Arkansas Practice Test 17 Connecticut Practice Test 6 Delaware Practice Test 5 Delaware Practice Test 21 District Of Columbia Practice Test 23 Georgia Practice Test 3 Georgia Practice Test 8 Illinois Practice Test 7 Illinois Practice Test 16 Iowa Practice Test 19 Kansas Practice Test 12 Kentucky Practice Test 9 Kentucky Practice Test 15 Maine Practice Test 22 Maryland Practice Test 7 Mississippi Practice Test 18 Nebraska Practice Test 18 New York Practice Test 17 Oklahoma Practice Test 4 Rhode Island Practice Test 13 South Dakota Practice Test 17 Tennessee Practice Test 8 Tennessee Practice Test 15 Wisconsin Practice Test 20 Wyoming Practice Test 7 Wyoming Practice Test 13 California Practice Test 12