You must yield for emergency vehicles: Question You must yield for emergency vehicles: Answers Under no circumstances. When you see a flashing red or blue light or hear a siren. Only when other vehicles yield. None of the above. Explanation You must yield the right-of-way to any emergency vehicle that is using its siren or flashing lights. This questions appears in the following tests: Alaska Practice Test 5 Colorado Practice Test 14 District Of Columbia Practice Test 15 Florida Practice Test 7 Florida Practice Test 22 Hawaii Practice Test 5 Idaho Practice Test 36 Indiana Practice Test 10 Indiana Practice Test 30 Louisiana Practice Test 2 Maine Practice Test 45 Massachusetts Practice Test 1 Michigan Practice Test 49 Michigan Practice Test 25 Minnesota Practice Test 27 Montana Practice Test 16 Montana Practice Test 14 Nevada Practice Test 41 New Hampshire Practice Test 8 New Hampshire Practice Test 4 New Jersey Practice Test 37 New Jersey Practice Test 10 New Mexico Practice Test 25 North Carolina Practice Test 32 Ohio Practice Test 8 Oregon Practice Test 10 Rhode Island Practice Test 13 South Carolina Practice Test 5 Texas Practice Test 15 Vermont Practice Test 2 Virginia Practice Test 20 Washington Practice Test 9 West Virginia Practice Test 17 Wisconsin Practice Test 8