Question Drivers are required to obey instructions from: Answers Security guards patrolling parking lots. Other drivers whose vehicles are broken down on the roadway. Flaggers (signal persons) at construction sites. Explanation Drivers must obey special signs or instructions given by flaggers. They are in place to keep drivers and workers safe. Take a FREE Practice Test Now This questions appears in the following tests: Wyoming Practice Test Arizona Practice Test Arkansas Practice Test California Practice Test Rhode Island Practice Test Iowa Practice Test Kansas Practice Test Tennessee Practice Test Alabama Practice Test Connecticut Practice Test Oklahoma Practice Test Mississippi Practice Test Wisconsin Practice Test Kentucky Practice Test South Dakota Practice Test Maine Practice Test Delaware Practice Test