NYC Tow Truck Endorsement Practice Exam 2025 - Free Tow Truck Endorsement Practice Questions and Study Guide

The feature that helps prevent the separation of a towed vehicle is safety chains or cables. These are essential components used in towing to secure the towed vehicle to the towing vehicle, providing an added layer of safety. In the event that the primary towing mechanism, such as a hitch or a winch, fails, these chains or cables act as a backup to keep the towed vehicle connected. Their design is intended to bear heavy loads and prevent the towed vehicle from becoming fully detached, minimizing the risk of accidents on the road.

In contrast, a pulley system is typically utilized to manage and redirect force, often in the context of lifting or moving objects rather than securing a towed vehicle. A pusher axle is related to stability and load distribution but does not specifically focus on preventing separation during towing. A shock load refers to the sudden, unexpected forces that can occur during towing, which can affect the stability and safety of the operation, but does not prevent separation directly. Therefore, safety chains or cables are the critical feature for maintaining the connection between a towing vehicle and the vehicle being towed.