Question

what is the maximum load weight that a sling is designed to carry?
top weight
carry weight
load capacity
rated capacity

Explanation:

The rated capacity of a sling is the maximum load weight it is designed to carry. It is a standard term in engineering (under Natural Science - Engineering sub - field) for specifying the maximum load a lifting device can handle safely. Top weight and carry weight are not standard terms for this specific engineering - related definition. Load capacity is a more general term, while rated capacity is specifically defined for such equipment.

Answer:

rated capacity