Question A diamond-shaped sign: Answers Warns of existing or possible hazards. Alerts drivers to school zones. Alerts drivers to public recreation areas. Alerts drivers to upcoming food and gas locations. Explanation Diamond-shaped signs warn drivers of existing or potential driving hazards. You will usually see these signs in yellow or orange. Take a FREE Practice Test Now This questions appears in the following tests: Washington Practice Test Ohio Practice Test Indiana Practice Test Michigan Practice Test Nevada Practice Test Florida Practice Test Vermont Practice Test Minnesota Practice Test Montana Practice Test New Hampshire Practice Test West Virginia Practice Test Texas Practice Test Virginia Practice Test Louisiana Practice Test Maine Practice Test Oregon Practice Test New Jersey Practice Test North Dakota Practice Test Colorado Practice Test District Of Columbia Practice Test Idaho Practice Test Missouri Practice Test Iowa Practice Test North Carolina Practice Test Massachusetts Practice Test Utah Practice Test Wisconsin Practice Test Hawaii Practice Test