What can rust around the wheel nuts indicate? Question What can rust around the wheel nuts indicate? Answers That the nuts are loose. That the nuts are wet. That the nuts need to be replaced. That the nuts are the wrong size. Explanation Rust around wheel nuts can indicate that they are loose. If you observe rust, check the tightness of the nuts. This questions appears in the following tests: Colorado Class B Knowledge Test Georgia Double Montana Double Nevada Passenger Oregon Double Pennsylvania HazMat