Building Construction & Collapse
This building material is affected by both size and moisture content in fire conditions.
What is wood?
This stage of fire development makes collapse most likely.
What is the fully developed stage?
This type of collapse causes floors to stack on top of each other.
What is a pancake collapse?
Class B foam is most effective on these fuels.
What are hydrocarbon fuels?
This ICS feature uses common terminology and communication.
What is NIMS-ICS?
When heated, steel structural members do this, pushing walls outward.
What is elongate?
This is a warning sign that a structure may collapse due to water weight.
What is little or no water runoff?
This collapse type has survivable voids but risk of secondary collapse.
What is a V-shaped collapse?
Foam bubbles are created through this process.
What is aeration?
This causes air and smoke movement in a structure.
What is pressure difference?
This factor affects how quickly steel fails under fire conditions.
What is size?
Traditionally, collapse zones are this size relative to the building.
What is 1½ times the height of the structure?
These are used to prevent a vehicle from moving horizontally.
What are wheel chocks?
These fuels mix readily with water.
What are polar solvents?
The IC performs this ...... to determine strategy.
What is risk/benefit analysis?
This material is used for protection due to its high moisture content.
What is gypsum wallboard?
After clearing a collapse zone, this must occur immediately.
What is a personnel accountability report?
This vehicle construction integrates frame and body into one unit.
What is unibody construction?
Most firefighting foam mixtures contain this percentage of water.
What is 94–99.9% water?
This hoseline type allows quick water application but less flow.
What is a small-diameter hoseline?
This engineered wood product produces toxic gases when burned.
What is OSB (oriented strand board)?
HVAC systems can spread fire by doing this.
What is moving products of combustion?
Apparatus should be positioned this way at an extrication scene.
What is forming a barrier from traffic (fend-off)?
This method uses an external pump to add foam concentrate.
What is injection?
These signals are used when crews must exit due to danger.
What are evacuation signals?