Question This sign means: Answers Watch for trucks. Do not pass trucks. Truck parking area ahead. Steep downgrade ahead. Explanation This sign warns of the presence of a hill ahead. Take a FREE Practice Test Now This questions appears in the following tests: New Mexico Practice Test Maine Practice Test Colorado Practice Test District Of Columbia Practice Test New Jersey Practice Test Idaho Practice Test Pennsylvania Practice Test Maryland Practice Test Missouri Practice Test Nebraska Practice Test West Virginia Practice Test Oklahoma Practice Test South Carolina Practice Test North Dakota Practice Test Rhode Island Practice Test