Question

what are the three main protection methods against cave - ins? select the best option. shields, shoring, and roofing shields, shoring, and sloping frames, shoring, and sloping

Explanation:

In construction - related safety for excavation work, the three main protection methods against cave - ins are shields (to protect workers), shoring (to support the sides of an excavation), and sloping (to reduce the pressure on the excavation walls).

Answer:

B. Shields, shoring, and sloping