If a trailer is less than 2,000 lbs. G.V.W., which of the following devices must be used together with a coupling device?

The correct device to use when a trailer weighs less than 2,000 lbs. G.V.W. is a safety chain and hitch pin. The purpose of this combination is to ensure the secure connection between the towing vehicle and the trailer.

The safety chain provides an extra layer of security. In the event that the coupling device fails, the safety chain prevents the trailer from breaking loose and potentially causing accidents. The hitch pin helps to lock the coupling device in place, ensuring that the trailer remains securely attached while in transit.

It's crucial for drivers to use the appropriate safety equipment when towing, especially with trailers that can sway or become unstable at higher speeds. By following this guideline, drivers can increase safety and reduce the risk of accidents on the road. Understanding the proper equipment for towing ensures compliance with safety regulations and best practices.