Question When driving with covered cargo, a cover that flaps: Answers Is acceptable. Allows air to keep the cargo cool. Can tear loose. Can attract birds. Explanation Cargo covers should not flap in the wind. They could tear loose, not only uncovering the cargo but also blocking the views of drivers. Take a FREE Practice Test Now This questions appears in the following tests: Kansas Knowledge Test Class A , Wisconsin Knowledge Test Class A , Connecticut Knowledge Test Class B , Montana Knowledge Test Class B ,