The Commercial Drivers License (CDL) Study Guide


How to Use Mirrors.

Use mirrors correctly by checking them quickly and understanding what you see. Checking quickly.

When you use your mirrors while driving on the road, check quickly.

Look back and forth between the mirrors and the road ahead. Don’t focus on the mirrors for too long. Otherwise, you will travel quite a distance without knowing what’s happening ahead.

Understanding what you see.

Many large vehicles have curved (convex, “fisheye,” “spot,” “bugeye”) mirrors that show a wider area than flat mirrors. This is often helpful. But everything appears smaller in a convex mirror than it would if you were looking at it directly.

Things also seem farther away than they really are. It’s important to realize this and to allow for it.



You can click on the safety tips for more information.

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This site is meant to enhance your learning of the Rules of the Road and is not intended to replace the Drivers Manual supplied by the Motor Vehicle Department of your State. Send mail to web master with questions or comments about this web site.

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