This sign means: Question This sign means: Answers A left curve is ahead. A series of curves is ahead. An S-curve is ahead. The road will be slippery when wet. Explanation This sign warns that especially slippery conditions exist when the road is wet. This questions appears in the following tests: Alaska Motorcycle Practice Test 96 Arizona Motorcycle Practice Test 30 Arkansas Motorcycle Practice Test 144 Colorado Motorcycle Practice Test 60 Connecticut Motorcycle Practice Test 79 District Of Columbia Motorcycle Practice Test 18 Hawaii Motorcycle Practice Test 91 Idaho Motorcycle Practice Test 123 Illinois Motorcycle Practice Test 23 Indiana Motorcycle Practice Test 132 Iowa Motorcycle Practice Test 128 Kentucky Motorcycle Practice Test 17 Louisiana Motorcycle Practice Test 123 Maine Motorcycle Practice Test 110 Maryland Motorcycle Practice Test 59 Massachusetts Motorcycle Practice Test 6 Michigan Motorcycle Practice Test 62 Minnesota Motorcycle Practice Test 20 Mississippi Motorcycle Practice Test 129 Missouri Motorcycle Practice Test 107 Montana Motorcycle Practice Test 133 Nebraska Motorcycle Practice Test 83 Nevada Motorcycle Practice Test 132 New Hampshire Motorcycle Practice Test 20 New Jersey Motorcycle Practice Test 102 New Mexico Motorcycle Practice Test 1 New York Motorcycle Practice Test 77 North Carolina Motorcycle Practice Test 40 North Dakota Motorcycle Practice Test 67 Ohio Motorcycle Practice Test 192 Oklahoma Motorcycle Practice Test 10 Oregon Motorcycle Practice Test 27 Pennsylvania Motorcycle Practice Test 61 Rhode Island Motorcycle Practice Test 34 South Carolina Motorcycle Practice Test 160 Texas Motorcycle Practice Test 77 Utah Motorcycle Practice Test 20 Vermont Motorcycle Practice Test 121 Washington Motorcycle Practice Test 7 West Virginia Motorcycle Practice Test 78 Wisconsin Motorcycle Practice Test 54 Wyoming Motorcycle Practice Test 45