A sign with this shape means: 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. This questions appears in the following tests: Wisconsin Motorcycle Practice Test 32 California Motorcycle Practice Test 8 Georgia Motorcycle Practice Test 37 Kansas Motorcycle Practice Test 32 Virginia Motorcycle Practice Test 47 Wyoming Motorcycle Practice Test 102
