Question When mirrors are properly adjusted: Answers No part of the vehicle should be visible in the mirrors. A part of the vehicle should be visible in the mirrors. More than half of each mirror should show the vehicle. Explanation A properly adjusted mirror will show some portion of the vehicle. This will provide a point of reference to help the driver judge the distance of other objects to the vehicle. Take a FREE Practice Test Now This questions appears in the following tests: Nebraska Knowledge Test Class A , Iowa Knowledge Test Class B , Louisiana Knowledge Test Class B , Wyoming Tank ,