Chpt 1 Flashcards
The useful life span of a building can range from ____ or more therefore almost all communities include buildings that vary widely in age
25 to 100 years
In any size community, a fire officer can be faced with difficult situations because _____ affect the course of fire
Building variables
The effects of age are not uniform. Older neighborhoods sometimes under go ______, in which older properties are extensively rehabilitated to satisfy the desires of a modern real estate.
Gentrification
An _____, especially an automatic sprinkler system is the first line of defense in a building.
Automatic fire protection systems
The ____ of a building often affects the ways in which building components behave under fire conditions.
Occupancy
Changes in _____ frequently result in a significant difference in the amount and type of combustible materials in a building.
Occupancy
Nothing is more fundamental to a building than the _____ from which it is constructed
Materials
Contemporary building codes use numerical designations for the various construction types as follows
Type 1 fire resistive
Type 2 non combustible
Type 3 exterior protected
Type 4 heavy timber
Type 5 wood frame
The _____ of a building refers to its general shape or layout
Configuration
Is a primary factor for fire department operations
Access
The national fire protection association defines a building as an ____ when the heat from an external fire might cause ignition of or damage to the exposed building.
Exposure
In tactical fire fighting, the term ____ is also used to refer to a structure or an object such as a propane tank or a pile of lumber to which a fire could spread
Exposure
Occurred when fires communicated from building to building
Conflagrations
Is the transfer of heat by the movement or liquids or gases, usually in an upward direction.
Convection
Horizontal communications of fire is mainly due to ____
Thermal radiation
Is the transfer of heat energy through space by electromagnetic waves
Thermal radiation
In physics, the _____ law states that the intensity of thermal radiation is a function of the fourth power of the absolute temperature of the thermal radiation source.
Stefan Boltzmann law
In engineering, ____ is said to occur when a structure or part is no longer capable of performing its required function in a satisfactory manner.
Failure