Primary vs secondary search difference.

• A. Primary search is to locate and remove occupants quickly; secondary search is a thorough check after conditions allow.
• B. Primary search is conducted outside; secondary search inside.
• C. Primary search is to locate and remove occupants quickly; secondary search is a thorough check after conditions allow.
• D. Primary search focuses on property damage; secondary search focuses on life safety.

Answer: (C)

The main idea is two-stage searching on the fireground: a rapid life-safety search followed by a thorough clearance check. The primary search is done quickly inside the structure to locate and remove occupants who may be trapped or unable to self-rescue. It prioritizes speed and reaching all areas that are immediately accessible so people can be taken to safety as soon as possible.

Once conditions have improved—hazards reduced, fire knocked down, and crews safely positioned—the secondary search is carried out. This is a careful, systematic sweep to verify that no one was missed and to check areas that might not have been searched during the initial push, including concealed spaces and rooms behind doors.

So, the best description is that the primary search aims to locate and remove occupants quickly, while the secondary search is a thorough check after conditions allow.