Question If you must stop on the side of a highway, how far behind your vehicle should warning devices be placed? Answers 5, 15, and 30 feet 10, 25, and 50 feet 10, 100, and 200 feet 100, 200, and 500 feet Explanation When stopping your CMV on the side of a highway, warning devices must be placed 10 feet, 100 feet, and 200 feet behind the vehicle. Take a FREE Practice Test Now This questions appears in the following tests: Indiana Knowledge Test Class A , Arkansas Knowledge Test Class B , North Dakota Double ,