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28 Cards in this Set
- Front
- Back
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How man years is the average lifespan of a building before it shows signs of deterioration?
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75 to 100 years
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Arrange the following construction elements on a scale of importance according to overall stability during a fire: Floor deck
Floor beam Bearing wall Column Girder |
Most important
a) Bearing wall b) Column c) Girder d) Floor beam e) Floor deck Least important |
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A stress pressing or squeezing a structure together is called ________.
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compression
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A stress causing parts to slide past another part of the same structure is called ________.
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shear
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What is a stress called which causes a structure to pull apart in opposite directions?
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tension
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Which of the following would create the most serious collapse?
a) A floor deck b) A floor beam c) A floor girder d) A column supporting a floor |
d) A column supporting a floor
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Five basic types of building construction names used within the fire service are:
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a) Fire resistive
b) Non-combustible c) Ordinary construction d) Heavy timber e) Wood frame |
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What is the most serious space in a ordinary constructed building?
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The common cockloft, the space above the ceiling and below the roof.
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When establishing a collapse danger zone, which type of collapse should the officer expect?
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A 90 degree angle collapse.
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- The continuation of an exterior wall, or a party wall above the roof level.
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PARAPET WALL
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What is the one room in a residential building whose floor frequently collapses during a fire?
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Bathroom
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A roof deck which feels "springy" or "bouncy" when walked upon should indicate what to a firefighter?
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- the the supports or rafters beneath the roof deck are far apart.
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A roof deck which feels "spongy" or crushes when walked upon should indicate what to a firefighter?
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- that the roof deck has been weakened by fire.
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What is one of the most dangerous areas on the fireground?
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The area around the perimeter of a burn building?
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- a structural composition of wood or steel joined together in a group of triangles, and arranged in a single plane so that loads applied at points of intersecting members will cause only direct stress.
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TRUSS
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What is the one room in a residential building whose floor frequently collapses during a fire?
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Bathroom
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A roof deck which feels "springy" or "bouncy" when walked upon should indicate what to a firefighter?
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- the the supports or rafters beneath the roof deck are far apart.
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A roof deck which feels "spongy" or crushes when walked upon should indicate what to a firefighter?
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- that the roof deck has been weakened by fire.
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What is one of the most dangerous areas on the fireground?
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The area around the perimeter of a burn building?
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- a structural composition of wood or steel joined together in a group of triangles, and arranged in a single plane so that loads applied at points of intersecting members will cause only direct stress.
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TRUSS
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What is the definition of "timber"?
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wood construction larger than 2 x 4 inches.
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The stability of a timber truss depends on its weakest link. What is its weakest link?
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A web member
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The main fuel load of a timber truss building will be found where?
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In the roof
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An open web steel bar joist can collapse after as few as how many minutes of fire exposure?
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Five minutes.
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The failure temperature of steel is how many degrees F?
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1100 degrees F
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What is the main concern of the fire service about the danger of the lightweight wood truss?
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The sheet metal surface fastener.
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What is the most serious danger to a firefighter trapped beneath a ceiling collapse?
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Death caused by burns or smoke inhalation.
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The measure of maximum heat release when all combustible material in given fire area is burned.
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FIRE LOAD
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