Question Which of the following is true about vehicles displaying a diamond-shaped sign that indicates a hazardous load? Answers They are not allowed to drive on freeways. They must stop before crossing railroad tracks. They are not allowed to exceed 35 mph. Explanation Vehicles displaying hazardous load signs are required to stop before crossing railroad tracks. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: California Practice Test 26 California Practice Test 36