Question A yellow and black diamond-shaped sign: Answers Warns you about conditions on or near the road. Helps direct you to cities and towns ahead. Tells you about traffic laws and regulations. Tells you about road construction ahead. Explanation Warning signs, which tell you about conditions on or near the road ahead, are usually diamond-shaped with black symbols or words on a yellow background. Take a FREE Practice Test Now This questions appears in the following tests: Maine Practice Test Rhode Island Practice Test New Mexico Practice Test Wisconsin Practice Test Kentucky Practice Test Hawaii Practice Test North Dakota Practice Test Nevada Practice Test Louisiana Practice Test New Jersey Practice Test Colorado Practice Test