Question A safety belt: Answers Helps secure a driver in a crash. Allows a driver to be thrown within their vehicle in a crash. Makes it difficult for a driver to operate a vehicle. Explanation In the event of a crash, a safety belt keeps the driver of a commercial motor vehicle securely positioned behind the steering wheel. This both protects the driver from injury and makes it easier for them to maintain control of the vehicle. This questions appears in the following tests: Arizona Class A Knowledge Test Arkansas Class B Knowledge Test Louisiana Class A Knowledge Test Mississippi Class A Knowledge Test Utah Class B Knowledge Test