CDL General Knowledge Practice Test 2026 - Free CDL Practice Questions and Study Guide

Finding an obstruction on your mirrors or windshields is a crucial safety concern when operating a commercial vehicle. The correct course of action is to clean and adjust them as necessary. This ensures that you maintain a clear and unobstructed view of your surroundings, which is essential for safe driving.

An obstruction could greatly hinder your ability to see other vehicles, pedestrians, or road signs, significantly increasing the risk of accidents. Regularly checking and maintaining your mirrors and windshields is vital for safety, as proper visibility is a key component of defensive driving. Taking the time to resolve any issues with your mirrors or windshields before operating the vehicle can help prevent potential hazards on the road.

Other options, such as ignoring the obstruction, merely reporting it, or notifying law enforcement, do not address the immediate need for clarity in your line of sight while driving. These actions could compromise your ability to drive safely and may lead to increased risks on the road.