Illinois CDL Practice Exam 2025 - Free CDL Practice Questions and Study Guide

Question: 1 / 400

Under what conditions is it illegal to use a mobile device while driving a commercial vehicle?

Only while stopped

At all times, unless hands-free

Using a mobile device while driving a commercial vehicle is illegal at all times, unless it is used in a hands-free manner. This regulation is put in place to minimize distractions and enhance safety on the road. Commercial driving requires a high level of attention and focus, given the size and weight of the vehicles involved and the potential for accidents.

Hands-free devices allow drivers to keep both hands on the wheel and their eyes on the road, which significantly reduces the risk of accidents compared to manual use of mobile devices. The strict prohibition on using handheld devices seeks to prevent dangerous distractions that can lead to serious incidents. Consequently, restrictions do not only apply to certain situations such as highway driving or adverse weather but encompass all driving activities in commercial settings, promoting an overall safer driving environment.

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Only while driving on highways

Only during inclement weather

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