Trench Rescue: Ensuring Safety in Technical Rescues

What type of technical rescue requires keeping all nonessential personnel, bystanders, and heavy equipment back to prevent vibrations from causing secondary cave-ins?

a- water rescue

b- trench rescue

c- vehicle rescue

d- structural collapse rescue

Final Answer:

Trench rescue is the type of technical rescue that requires all nonessential personnel, bystanders, and heavy equipment to be kept back to prevent vibrations from potentially triggering secondary cave-ins.

Explanation: The type of technical rescue that requires keeping all nonessential personnel, bystanders, and heavy equipment back to prevent vibrations from causing secondary cave-ins is b- trench rescue. Trench rescues are complex operations that typically involve a person trapped in a collapsed trench or excavation. The area around the incident needs to be maintained clear to avoid further collapsing. For this reason, nonessential personnel and heavy equipment are kept at a distance to reduce the chances of causing a secondary collapse due to vibrations. This procedure is essential to enhance the victim's safety and the rescue team's effectiveness.