Question A person's ability to drive can be impaired by: Answers Alcohol. Any medication. A lack of sleep. All of the above. Explanation The ability to drive safely is dependent on the driver being in good physical condition. Driving can be impaired by alcohol, legal and illegal drugs, and being drowsy. Pass your DMV Written Test with flying colors Take me to the cheat sheet Vermont This questions appears in the following tests: Nevada Practice Test 31 Colorado Practice Test 9 Colorado Practice Test 13 Florida Practice Test 37 Hawaii Practice Test 16 Idaho Practice Test 14 Indiana Practice Test 47 Louisiana Practice Test 33 Maine Practice Test 40 Massachusetts Practice Test 19 Michigan Practice Test 39 Michigan Practice Test 41 Michigan Practice Test 42 Minnesota Practice Test 7 Missouri Practice Test 7 Montana Practice Test 6 New Hampshire Practice Test 6 New Jersey Practice Test 19 New Mexico Practice Test 23 North Carolina Practice Test 20 North Dakota Practice Test 8 Oregon Practice Test 26 Oregon Practice Test 11 Rhode Island Practice Test 3 South Carolina Practice Test 25 Texas Practice Test 13 Utah Practice Test 13 Vermont Practice Test 13 Virginia Practice Test 34 Washington Practice Test 8 West Virginia Practice Test 23 Wisconsin Practice Test 21 Colorado Practice Test 12 Florida Practice Test 27 Hawaii Practice Test 13 Idaho Practice Test 29 Indiana Practice Test 23 Louisiana Practice Test 16 Maine Practice Test 50 Massachusetts Practice Test 18 Michigan Practice Test 36 Minnesota Practice Test 10 Missouri Practice Test 23 Montana Practice Test 10 Nevada Practice Test 17 New Hampshire Practice Test 16 New Jersey Practice Test 30 New Mexico Practice Test 19 North Carolina Practice Test 24 North Dakota Practice Test 1 Oregon Practice Test 28 Rhode Island Practice Test 15 South Carolina Practice Test 9 Texas Practice Test 23 Utah Practice Test 1 Vermont Practice Test 15 Virginia Practice Test 28 Washington Practice Test 1 West Virginia Practice Test 23 Wisconsin Practice Test 19