Rev Up and Rule the Road 2025: JJ Keller Entry Level CDL Driver Test Challenge!

Question: 1 / 400

According to federal regulations, what safety feature must you use in a commercial motor vehicle?

Air conditioning

Seat belt

The requirement to use a seat belt in commercial motor vehicles is mandated by federal regulations because it serves as a critical safety feature that significantly reduces the risk of injury or death in the event of a crash. Seat belts help to secure the driver and any passengers in their seats, preventing ejection from the vehicle and minimizing movement during a collision, which is crucial for maintaining control of the vehicle.

While features such as air conditioning, anti-lock braking systems, and fatigue monitors can contribute to comfort and safety, they are not universally mandated for all commercial motor vehicles under federal law, making the proper use of seat belts the primary focus for safety compliance. This reinforces the importance of basic safety measures in protecting drivers and ensuring a safer driving environment on the roads.

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Anti-lock braking system

Fatigue monitor

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