Question This sign means: Answers U-turns are prohibited. U-turns are permitted. Winding road ahead. Sharp left turn ahead. Explanation A regulatory sign displaying a red circle with a red slash through the middle indicates that a specific action is prohibited. U-turns are not permitted where this sign is posted. Take a FREE Practice Test Now This questions appears in the following tests: Utah Practice Test New Hampshire Practice Test Massachusetts Practice Test Missouri Practice Test Indiana Practice Test Michigan Practice Test Minnesota Practice Test Ohio Practice Test Idaho Practice Test Hawaii Practice Test Montana Practice Test Oregon Practice Test North Dakota Practice Test Louisiana Practice Test Virginia Practice Test Nevada Practice Test Texas Practice Test New Jersey Practice Test North Carolina Practice Test Wisconsin Practice Test New York Practice Test Alaska Practice Test West Virginia Practice Test Iowa Practice Test Maine Practice Test Florida Practice Test Colorado Practice Test