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ISO CLT 17 > Ch5 > Flashcards

Ch5 Flashcards

1
Q

Building analysis during any incident should be ______that is , performed on a regular basis as conditions change and time elapses

A

Cyclic

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2
Q

Only upon arrival and size up is a fire classified as _______.

A

Structural

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3
Q

Unfinished wood that is being rapidly heated emits a _________smoke. A collapse warning sign in light weight wood construction.

A

Brownish

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4
Q

Indications that an occupant is a hoarder should always evoke a concern of ______.

A

Overloading

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5
Q

______ are nothing more than “fake beams”.

A

Trusses

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6
Q

Historical weak links: (9)

A
  • Connections
  • Overloading
  • Occupancy conversion
  • Trusses
  • Void spaces
  • Stairs
  • Large, open span interiors
  • Parapet walls
  • Facades
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7
Q

Time truisms for predicting collapse:

Gravity and time are constant, ______ is not.

A

Resistance

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8
Q

Time truisms for predicting collapse:

The time opportunity window for interior operations in light weight buildings has been _________.

A

Reduced.

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9
Q

Time truisms for predicting collapse:

Brown or dark smoke coming from light weight engineered wood products mean that _________.

A

Time is up.

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10
Q

Time truisms for predicting collapse:

The _____ the structural elements, the faster the structure comes down.

A

Lighter

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11
Q

Time truisms for predicting collapse:

The heavier the _______, the faster the building comes down.

A

Imposed load

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12
Q

Time truisms for predicting collapse:

__________ steel buys time.

A

Wet(cooled)

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13
Q

Time truisms for predicting collapse:

There is no safe window for interior operations when a building is under construction, being renovated, or being disassembled. This is a _____situation and you should always establish a _______.

A

“No go”

Defensive attack

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14
Q

Areas that are exposed to trauma, debris, and / or thrust should a building or part of a building collapse.

A

Collapse zone

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15
Q

To predict collapse, the ISO uses a classic_____method. We can take that three-part method and apply at using a five step process:
•Step 1-classify construction using type/era/use/size approach
•Step 2- determine structural involvement (read smoke and flames)
•Step 3- visualize and trace loads.
•Step 4- evaluate time
•Step 5- predict and communicate collapse potential (foundation for zoning)

A

“Identify-analyze-decide” method

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16
Q

Using the type-Era-use-size approach helps the ISO identified the__and__associated with a given building and interpret how the materials and arrange a structural elements might be impacted by fire and heat

A

Strengths and weakness

17
Q

_________ means that the loadbearing components of the building are being attacked by fire or heat

A

Structure fire

18
Q

“Identify - analyze-decide”

Five step process:

This step is more art than a science-and is analytical

A

Step three: visualizing and tracing loads

19
Q

Identify analyze decide:

Five step process:

This step helps the iso defined the week wink, which typically precipitate the collapse. The ISO “mentally undresses” a building

A

Step three: visualizing and tracing loads

20
Q

Historical weak links:

Connections-structural failure is often the result of a_____.

A

Connection failure

21
Q

This report should be mandatory reading for ISOs

A

Structural collapse: the hidden dangers of residential fires

UL University posted this online training program

22
Q

Many factors dictate the time it takes to trigger a collapse, and we should always predict the___of trusses and engineered light weight wood assemblies to ensure cruiser safely outside structure before the collapse occurs

A

Early collapse

23
Q

Step five: predicting and communicating the collapse potential

Predicting collapse is the___part of the identify-analyze-decide model

A

“Decide”

24
Q

Can be defined as temporary shoring, racing, or formwork used to support incomplete structural elements during building construction

A

False work

25
Q

Diagonal braces that serve primarily as a column but must absorb some beam force as well

A

Raker

*also used as false work

26
Q

When flanking a collapsible, firefighter should you spotters and have rapid___and routes preestablished and communicated prior to the approach

A

Withdraw signals

27
Q

The building can except the failure of a single component and still retain some strength, like a curtain wall collapsed

A

Partial collapse

28
Q

The complete failure of the building to resist gravity

A

General collapse

29
Q

The collapse of a floor roof may impose wait on interior partition walls that were not designed for the load. These become a____, meaning that the slightest movement could cause an explosive release and secondary collapse

A

“Loaded gun”

30
Q

A directive for cruise to exit the building interior or roof in an orderly manner, bringing hoses and tools along

A

Precautionary withdrawal

ISO CLT 17 (8 decks)

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