Red Seal Transport Trailer Technician Practice Exam

The use of safety chains is a crucial safety feature designed to prevent a trailer from becoming unhitched while in transit. These chains are typically connected from the trailer's frame to the hitch on the towing vehicle. In the event that the trailer does accidentally detach from the hitch, the safety chains act as a fail-safe, keeping the trailer from completely separating from the towing vehicle. This helps to prevent accidents and ensure stability, allowing the driver to gain control and stop safely.

The other options serve different purposes: brake lights are essential for signaling stops but do not provide any mechanical connection to prevent detachment. Reflective tape improves visibility for others on the road, especially in low-light conditions, but does not contribute to securing the trailer. Wheel chocks are important for stabilizing a trailer when it is parked but do not play a role in securing it during transit. Thus, safety chains are the specific feature directly aimed at preventing accidental disconnection while in motion.