When using mirrors while driving, you should: Question When using mirrors while driving, you should: Answers Look in the mirrors quickly. Look in the mirrors for extended periods of time. Use only the rearview mirror. Use only the driver’s side mirror. Explanation Focusing on your mirrors for too long can be dangerous because you will have traveled a substantial distance without looking at the road ahead. This questions appears in the following tests: Colorado Class B Knowledge Test District Of Columbia Class B Knowledge Test Illinois Class A Knowledge Test Illinois Passenger Kansas Passenger Massachusetts Class B Knowledge Test Massachusetts Class B Knowledge Test Mississippi Double Montana Class B Knowledge Test New York Class A Knowledge Test Pennsylvania Class B Knowledge Test Wyoming Tank