Question This sign means: Answers Stop sign ahead. Lane closed ahead. Railroad crossing ahead. Traffic signal ahead. Explanation Warning signs are usually diamond-shaped with black markings on a yellow background. They alert drivers to upcoming hazards. This warning sign indicates that a traffic signal is ahead and drivers should prepare to react to a yellow or red light. Pass your DMV Written Test with flying colors Take me to the cheat sheet Hawaii This questions appears in the following tests: Colorado Practice Test 4 District Of Columbia Practice Test 19 Florida Practice Test 15 Florida Practice Test 28 Hawaii Practice Test 27 Hawaii Practice Test 30 Idaho Practice Test 28 Indiana Practice Test 35 Indiana Practice Test 27 Louisiana Practice Test 14 Louisiana Practice Test 18 Maine Practice Test 49 Massachusetts Practice Test 16 Michigan Practice Test 7 Michigan Practice Test 20 Minnesota Practice Test 19 Missouri Practice Test 7 Montana Practice Test 28 Nevada Practice Test 10 Nevada Practice Test 24 New Hampshire Practice Test 17 New Jersey Practice Test 10 New Jersey Practice Test 9 New Mexico Practice Test 7 North Carolina Practice Test 11 North Carolina Practice Test 25 North Dakota Practice Test 24 Ohio Practice Test 39 Oklahoma Practice Test 17 Oregon Practice Test 23 South Carolina Practice Test 1 Texas Practice Test 12 Utah Practice Test 25 Virginia Practice Test 4 Virginia Practice Test 8 Washington Practice Test 4 West Virginia Practice Test 12 Wisconsin Practice Test 23