Question Turn signals must be visible: Answers For 500 feet. For 250 feet. For 300 feet. Only at night. Explanation Vehicles manufactured after 1955 must have a white- or amber-colored turn signal on the front and red- or amber-colored turn signal light on the rear. The turn signals must be visible for 300 feet in the sunlight. Take a FREE Practice Test Now This questions appears in the following tests: Montana Practice Test