Question Signs with orange backgrounds are: Answers General warning signs. Construction and maintenance warning signs. Regulatory signs. Explanation The color orange is used only for construction and maintenance warning signs. This questions appears in the following tests: Alabama Practice Test 6 Alabama Practice Test 22 Arizona Practice Test 7 Arkansas Practice Test 21 Connecticut Practice Test 19 Delaware Practice Test 2 Delaware Practice Test 14 District Of Columbia Practice Test 13 Georgia Practice Test 3 Georgia Practice Test 7 Illinois Practice Test 4 Illinois Practice Test 14 Kansas Practice Test 1 Kentucky Practice Test 21 Maine Practice Test 6 Mississippi Practice Test 2 Nebraska Practice Test 8 Oklahoma Practice Test 9 Rhode Island Practice Test 21 South Carolina Practice Test 18 South Dakota Practice Test 10 Tennessee Practice Test 3 Tennessee Practice Test 16 Wisconsin Practice Test 8 Wyoming Practice Test 6 Wyoming Practice Test 17 California Practice Test 11 California Practice Test 24