Which traffic sign refers to the permissible total mass?

The image presents two traffic signs related to permissible total mass.

1. The first sign (5.5t) indicates that vehicles exceeding a total mass of 5.5 tons are prohibited from using that particular road.
2. The second sign (7.5t) signifies the same restriction for vehicles exceeding 7.5 tons.

In terms of German traffic laws, these signs help to ensure that roads which may have structural limitations or specific traffic conditions are used appropriately. Drivers need to be aware of these restrictions to avoid penalties and ensure road safety. When answering quiz questions about these signs, it's important to pay attention to the specific weight limits indicated.