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What is a "party wall"?
a load-bearing wall which supports two adjacent structures; e.g. a wall which divides a duplex in half
What is a "partition wall"?
a non-load-bearing wall which divides two areas within a structure
A firefighter can generally expect steel structural members to fail at or near ___ (temperature).
1,000°F (538°C)
Deterioration of ___ is generally the cause of collapse in a fire involving a masonry structure.
mortar
What is "spalling"?
the deterioration of concrete due to heat; i.e. the loss of surface material as a result of the expansion of moisture from heat exposure
What is a "dead load"?
the combined weight of a structure's building materials and any part of the structure that is built-in or permanently attached
What is a "live load"?
the combined weight of any materials or people on a structure (not a fixed part of the structure); i.e. a group of people on a balcony
What is a building's "fire load"?
all the parts or the contents of a structure that will burn
Wood and its by-products generally produce approximately ___ BTUs/lb.
8,000
Synthetic materials generally produce ___ to ___ BTUs per pound.
12,000 to 15,000
What are the standard inlet and outlet coupling sizes, maximum flow, maximum inlet pressure, vertical nozzle adjustment range, and horizontal nozzle adjustment range of the Blitzfire?
2 ½ inch NH female/male; 500 gpm; 175 psi; 10 to 50 degrees above horizontal; 20 degrees either side of center
The safety shut-off valve on the Blitzfire will activate at approximately ___ of sideways acceleration.
one G
Placing the Blitzfire ___ may inhibit the resetting of the safety shut-off valve.
on tilted surfaces greater than 10 degrees
The Blitzfire has a ___ psi pressure loss at 500 gpm.
22 psi
What are the maximum recommended flow and inlet pressure for the Crossfire Portable/Deck Gun?
1,250 gpm, 175 psi
The portable base for the Crossfire Portable/Deck Gun has a revolutionary safety valve which will reduce the flow area through the base by ___ percent if the base should ___.
90 percent, leave the ground
A spring-loaded stop pin limits the Crossfire Portable/Deck Gun nozzle elevation to ___ degrees with respect to the base.
35 degrees
What is the approximate flow for each of the following nozzle diameters on the Crossfire Portable/Deck Gun when flowing at 80 psi? 1-3/8”, 1-1/2”, 1-3/4”, 2”
500 gpm, 600 gpm, 810 gpm, 1060 gpm
What does "SAR" stand for with respect to respirators?
Supplied Air Respirator
A supplied air respirator may have a hose up to ___ feet long.
200
An air purifier/compressor used to fill SCBA bottles must be tested at least every ___.
three months
Which two knots are generally considered useful for joining together two ropes of equal diameter?
figure eight knot (follow-through), becket bend
When using a becket bend variation to tie together two ropes of unequal diameters, which rope should be used to form the initial bight?
the rope with the larger diameter
The becket bend is utilized to tie ropes of ___ diameter together, while the double becket bend is used most often when tying ropes of ___ diameter.
equal, unequal
A ___ (knot) is used to attach a rope to an object, such as a pole, tree, fence post, or to a tool such as a pike pole or hoseline.
clove hitch
What is considered an acceptable way of determining whether or not a ladder has been set at the proper climbing angle?
with toes touching the base of the ladder, hands should be able grasp the beams at shoulder level with arms held straight out
What are the three most common natural materials used for constructing rope?
manila, sisal, cotton
Manila rope is made from the fibers that grow in the leafstalk of the ___ plant.
Abaca
Sisal rope is made from the fibers that grow in the leafstalk of the ___ plant.
Agave
Cotton fiber rope is made from the seed hairs obtained from the ___.
Cotton boll
The four primary synthetic materials utilized in the manufacture of ropes are ___, ___, ___ and ___.
nylon, polypropylene, polyethylene, polyester
One of the negative properties of nylon rope is its susceptibility to damage by ___.
acids
Ropes constructed of polypropylene are primarily used for ___ by the fire service.
water rescue operations
Static ropes have less then ___ percent elongation at normal safe working loads.
two percent
Dynamic rope has a ___-___ percent elongation at normal safe working loads.
10-15 percent
___ ropes are formed by twisting individual ___ together to form ___. These are then twisted together to form the finished rope.
laid (or twisted), fibers, strands (or bundles)
___ ropes are formed by weaving small bundles of fibers together uniformly and systematically.
braided
Name four types of rope construction.
laid (or twisted), braided, braid-on-braid, kernmantle
Do ropes of braided construction tend to be dynamic or static?
dynamic
In a kernmantle rope, the kern usually accounts for approximately ___ percent of the strength of the rope, with the ___ making up the rest and serving to ___ the kern.
75 percent, mantle, protect
When kern fibers are twisted together and a mantle woven over them, the result is a ___ kernmantle rope.
dynamic
When kern fibers run parallel continuously and a mantle is woven over them, the result is a ___ kernmantle rope.
static
True of false: Rope used only for utility purposes has no standard which governs materials, required strength, safety factors, number of uses, or associated hardware requirements.
true
Ropes, harnesses, and hardware utilized anywhere there will be a life supported must comply with NFPA ___.
NFPA 1983 (Standard on Fire Service Life Safety Rope and System Components)
A one-person rope requires a minimum tensile strength of ___ pounds, and a two-person rope requires a minimum tensile strength of ___ pounds.
4,500 pounds, 9,000 pounds
The end of a rope utilized to tie a knot is known as the ___.
working end
The portion of a rope located between the working end and the running end is known as the ___.
standing part
The portion of a rope used for work such as hoisting a tool is known as the ___.
running end
A ___ is formed in a rope when a turn in the standing part crosses itself and results in the standing part continuing on in the original direction of travel.
loop
A ___ is formed in a rope when the rope is doubled, usually along the standing part.
bight
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