Chapter 11 Flashcards
(48 cards)
Per NFPA, 1 and 2 family dwellings are those in which no more than ___ families reside.
2 families
One and two family dwellings… The most common construction style is ___ and ___.
Wood frame and masonry
Per NFPA full report “fire loss in the use during 2010”, U.S. fire departments responded to an estimated ___ fires.
1,331,500
Resulting in ___ civilian fire fatalities, ___ civilian fire injuries, and est $___ in direct property loss.
3,120
17,720
$11,593,000,000
There was a civilian fire death every ___ minutes and civilian fire injury every ___ minutes in 2010.
169 min
30 min
Residential home fires accounted for more than ___% of the total structure fires and ___% of the civilian fire deaths.
80%
85%
FD’s respond to a residential structure fire every ___ seconds; of these fires, one and two family structures account for ___% of the fires and ___% of civilian fire deaths.
65 seconds
58% of the fires
71% of civilian fire deaths
According to the USFA ___% of civilian fire fatalities in residential buildings occur between the hours of ___ and ___; this period also accounts for ___% of fatal fires.
50%
10pm and 6am
49%
Peak night hours are from ___ to ___.
1am to 5am
___ is the leading cause of fatal residential building fires.
Smoking
According to the 2010 USFA fire fighter fatality report, ___% of fire ground fire fighter fatalities occurred in residential structures.
10%
In 2013, UL firefighter safety research institute (UL FSRI) released a technical report titled “study of the effectiveness of fire service vertical ventilation and suppression tactics in single family homes”. A series of ___ experiments were conducted.
17
The most common building construction methods for one and two family dwellings are type ___ and type ___.
Type V
Type III
Wood frame typically falls in one of three framing methods:
Post and frame
Balloon frame
Platform frame
Post and Frame… Larger members are usually ___ posts that serve as the main structural members.
4x4
Post and Frame… Smaller ___ studs are sued to fill in between the larger members.
2x4
___ uses standard 2x4’s in which exterior framing members run 2 or 3 stories high.
Balloon Frame
Balloon Frame… In houses built prior to ___, these framing members form and open channel from the foundation to the eave line.
1940
Balloon frame built after 1940 usually have ___ in the walls.
Fire stops
____: Each floor is built as a box.
Platform frame
Split level, bi level, and tri level houses are all variations of ___ construction.
Platform frame
Ordinary construction; the difference between wood frame and masonry lies in the ____.
Bearing walls
This style is very popular in the southern states where hurricanes are prevalent…
Ordinary (masonry)
In one and two family dwellings the most common paths for smoke and fire are ___ and ___.
Hallways and Stairways