Truckers' Challenge: How Well Do You Know Big Rigs?Share:FacebookPinterestTwitterMail11. When checking lights during a pre-trip inspection, which lights must be functional?44%Next Correct Incorrect Headlights, tail lights, brake lights, and turn signals must all work properly. 11. When checking lights during a pre-trip inspection, which lights must be functional? Headlights and tail lights Only headlights Only turn signals Interior cabin lights 44%
