Question This sign indicates that: Answers There is a steep hill ahead. No trucks are allowed on the upcoming hill. A logging road is ahead. Explanation Warning signs are usually yellow with black markings. This sign warns drivers about an upcoming steep hill. Drivers should slow down and be ready to control their speed and protect their brakes from damage. Take a FREE Practice Test Now This questions appears in the following tests: Kansas Practice Test South Carolina Practice Test Ohio Practice Test Wisconsin Practice Test California Practice Test