Question A sign with this shape means: Answers Railroad crossing. Warning. Signal ahead. Explanation A diamond-shaped yellow sign warns of possible danger ahead. Orange signs, which are mostly diamond-shaped, are used to warn of possible dangers in or near work areas. Pass your DMV Written Test with flying colors Take me to the cheat sheet Arizona This questions appears in the following tests: Delaware Practice Test 11 Georgia Practice Test 19 Delaware Practice Test 23 Delaware Practice Test 30 Georgia Practice Test 1 Illinois Practice Test 1 Illinois Practice Test 28 Illinois Practice Test 6 Kentucky Practice Test 36 South Dakota Practice Test 18 Arkansas Practice Test 19