Question Passing is prohibited: Answers On hills and curves. At intersections. At railroad crossings. All of the above. Explanation Locations where it is unlawful and unsafe to pass another vehicle include hills, curves, intersections, and railroad crossings. Take a FREE Practice Test Now This questions appears in the following tests: Iowa Practice Test Massachusetts Practice Test Nevada Practice Test Hawaii Practice Test Louisiana Practice Test Maine Practice Test Michigan Practice Test Virginia Practice Test New Hampshire Practice Test North Dakota Practice Test Rhode Island Practice Test Idaho Practice Test West Virginia Practice Test Montana Practice Test Missouri Practice Test Indiana Practice Test Texas Practice Test Minnesota Practice Test Florida Practice Test Oklahoma Practice Test Oregon Practice Test Colorado Practice Test New Jersey Practice Test Washington Practice Test North Carolina Practice Test District Of Columbia Practice Test Nebraska Practice Test Alaska Practice Test Wisconsin Practice Test