Tow Truck Operator Certification Practice Exam

What grade of chain is recommended for the towing industry for heavy-duty applications?

1. Grade 30 transport chain

2. Grade 50 alloy chain

3. Grade 70 transport chain and grade 80 alloy chain

4. Grade 100 super-strength chain

The correct answer is: Grade 70 transport chain and grade 80 alloy chain

In the towing industry, particularly for heavy-duty applications, using the appropriate grade of chain is vital to ensure safety and reliability. The correct choice of Grade 70 transport chain and Grade 80 alloy chain is based on their strength and tolerance to loads typically encountered during towing operations. Grade 70 transport chains are designed for heavy-duty usage and are often used in applications like towing, due to their high strength-to-weight ratio. They are generally rated for load binding and are suitable for vehicle recovery, making them a standard choice for towing operations. Grade 80 alloy chains, on the other hand, provide even higher strength and are designed for lifting applications. They are often employed in more demanding situations where additional strength is required. The combination of both grades allows for versatile usage in various towing and recovery scenarios. While other grades, such as Grade 30 and Grade 50, may be suitable for lighter applications, they do not provide the necessary strength required for heavy-duty towing. Grade 100 super-strength chains, while more advanced, might exceed what is typically necessary for standard heavy-duty towing and could be more specialized for specific applications, making them less common in general towing practices. Therefore, the combination of Grade 70 transport chain and Grade 80 alloy