JIBC Exterior Practice Exam

What is a defensive exterior attack and when would you use it?

Ventilating the structure from the exterior to improve conditions. Suppressing fire from outside to protect exposures when interior suppression is unsafe or unlikely. Advancing a hose line through the interior to locate the seat of the fire. Conducting interior search and rescue with exterior support.

Correct Answer:

Suppressing fire from outside to protect exposures when interior suppression is unsafe or unlikely.

Explanation:

Defensive exterior attack means fighting the fire from outside the building, using water streams to knock down flames, limit heat, and prevent the fire from spreading while interior entry is avoided or postponed. This approach is used when interior suppression would be unsafe or unlikely to succeed because of conditions like structural instability or collapse risk, heavy fire involvement, limited access or visibility, or other hazards that make entering dangerous. The goal is to protect exposures and nearby property and to contain the fire from a safer, exterior position, with interior operations only considered later if conditions improve.

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