Question Certain highway signs require drivers to obey an indicated instruction. Such signs are known as: Answers Regulatory signs. Warning signs. Information signs. Guide signs. Explanation Regulatory signs require drivers to obey an indicated instruction. Failure to comply is subject to penalty. Pass your DMV Written Test with flying colors Take me to the cheat sheet Hawaii This questions appears in the following tests: Indiana Practice Test 6 Louisiana Practice Test 21 Michigan Practice Test 25 New Jersey Practice Test 13 Alaska Practice Test 20 Florida Practice Test 11 Florida Practice Test 10 Hawaii Practice Test 30 Idaho Practice Test 28 Iowa Practice Test 16 Maine Practice Test 28 Massachusetts Practice Test 14 Minnesota Practice Test 5 Missouri Practice Test 8 Montana Practice Test 24 Nebraska Practice Test 9 Nevada Practice Test 41 New Hampshire Practice Test 22 New Jersey Practice Test 25 North Carolina Practice Test 17 North Carolina Practice Test 11 North Dakota Practice Test 13 Ohio Practice Test 34 Oklahoma Practice Test 12 Oregon Practice Test 12 Oregon Practice Test 30 Rhode Island Practice Test 26 Texas Practice Test 24 Utah Practice Test 8 Vermont Practice Test 12 Virginia Practice Test 16 Washington Practice Test 17 West Virginia Practice Test 19 Wisconsin Practice Test 28