Shared Flashcard Set

Details

0701
Ropes and Knots
62
Other
Professional
08/28/2007

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Cards

Term
What are the size ranges in ropes used by the LAFD?
Definition
1/4" to 3/4"
Term
The LAFD synthetic ropes are lengths up to ?
Definition
600ft.
Term
What are some of the uses for ropes?
Definition
Life Saving
Hoisiting Equipment
Guide Lines
Securing Equipment
Tie down loose equipment
Term
What is the bitter end?
Definition
The end of the line
Term
What is the working portion of the line?
Definition
Running Line
Term
What is contained in the Lifeline Rescue Kit?
Definition
A) Main Line.
ONE 300ft. low stretch 1/2"static line. (white in color. Red or Blue Stripe) Coiled in a red bag.
B) Safety /Blay line
ONE 200 1/2" static line (orange in color with a blue stripe) Coiled in orange bag.
C) TWO "D" rings
D) TWO prussik cords 15'
E) TWO stainless steel brake bar racks. (6 aluminum bars)
F) EIGHT "D" carabiners
G) TWO 8mm x 5'11" prussik cord
H) TWO 8mm x 4'11" prussik cord
I) TWO blue one inch tubular webbing. 5 ft.
J) TWO pieces yellow ince tubular webbing. 10 ft.
K) TWO red inch webbing 20 ft.
L) TWO record sheets
M) ONE 6'lon 3/4" anchor rope
N) TWO yellow multi-loop webbing 3' in length.
Term
How is the 1/2" static rope (in lifeline bag) constructed?
Definition
-Inner Core = braided kern, carries 90% of load
-Outer Cover (mantle) = tightly woven sheath
Term
How is the 1/2" static rope (in lifeline bag) rated at?
What does it weigh?
Definition
Rated at 10,0000lbs tensile strength

weighs 7lbs per 100ft.
Term
***What size Halyard does the 20ft. extension ladder use?
Definition
3/8 inch line
Term
What size Halyard does the 35 ft. extension ladder use?
Definition
5/8"
Term
How long is a dropline and what size is it?
Definition
150 ft. long
5/16"
Dacron Braided line
Term
What is the Throw Bag made of?
Definition
1000 D Cordura and 4200 Nylon
Term
When is it inspected?

Note: handout does not specify dropline,throw bag or life safety kit
Definition
monthly and after each use.
Term
When inspecting the rope what are you looking for?
Definition
Flat spots
Cuts
Frayed surfaces
Inner core showing through
Term
When SHALL the rope be removed from service?
Definition
1) Subjected to severe shock
2) Chemical action = caused damage
3) Stiff due to age or repeated soaking and drying.
Term
Contamination can cause a loss of strength and reliability. If possible avoid: (3)
Definition
Walking on
Driving on
dragging through: dirt, grease, chemicals.
Term
How can you clean the lifeline Rescue Kit?
Definition
warm water with approved cleaner
cold water
dry out in direct sunlight
Term
Log all rope as soon as you receive it. Log all training and emergency incidents on a : ________ ?
Definition
form 975
Term
LAFD webbing comes in what (3) lengths?
Definition
blue = 5 ft.
yellow = 10 ft.
red = 20 ft.
Term
What are the steel "D" carabiners rated at?
Definition
9000 lbs.
Term
What two pulleys does the LAFD carry?
Definition
2 1/2" aluminum prusik minding
4" stainless steel
Term
Pulling on a rope in a straight line until it breaks gives us the _________?
Definition
Tensile strength
Term
__________ is measured by the percentage of rope strength that remains after a knot is tied in the rope?
Definition
knot efficiency
Term
Used to create load relaesing hitch and supply friction in all types of rope systems?
Definition
munter hitch
Term
Used to secure your webbing / rope to anchor and secure a nozzle using a drop bag.
Definition
girth hitch / larks foot
Term
Recomended for use on a throw bag, lifeline and drop bag rope.
Definition
Figure eight
Term
Used to tie the end of a rope around an anchor?
Definition
Figure eight follow through
Term
Used to tie two ropes of the SAME size togethor?
Definition
Figure eight bend
Term
A good knot for atttaching two equal or unequal diameter ropes togethor. It is also used to back up bowlines.
Definition
Double fisherman
Term
Ropes in the LAFD range in size from:
Definition
1/4" to 3/4"
Term
The two line rope system is made up of what items?
Definition
One 300' low stretch rope/One 200 foot low stretch rope/ class III full body rescue harnesses/steel brake bar racks w/aluminum bars/ D carabiners/ 8mm cord/ tubular webbing various lenghts/inspection sheets/ anchor strip/ multi loop webbing
Term
Describe the main line?
Definition
300' low stretch .5" static kernmantle lifeline, white w/blue or red stripes running through it. stored in a red nylon bag.
Term
Descibe the safety/ belay line?
Definition
200' low stretch .5" static kernmantle rope, orange in color w/ blue strip, running through it. stored/coiled in a orange bag.
Term
How many full body rescue harnesses does an engine company carry?
What class are they?
Definition
2 large, Class III
Term
How many full body rescue harnesses does a truck company carry? What class are they?
Definition
3,one small/medium and 2 large
Term
How many adjustable seat harnesses with adjustable D ring?
Definition
2
Term
How many stainless steel bar racks with how many bars?
Definition
2, 6 aluminum bars
Term
How many D shaped carabiners?
Definition
8 steel
Term
The 2 long prussik cords are what size and length?
Definition
8mm x 5'11"
Term
The 2 short prussik cords are what size and what length?
Definition
8mm x 4'11"
Term
How many pieces of blue tubular webbing, and what size and length?
Definition
2 pices 1"x 5'
Term
How many pieces of yellow webbing, size and length?
Definition
2, 1"x 10'in handout, in book 29 it says they are 12'
Term
How many pieces of red webbing, size and length?
Definition
2, 1"x 20'
Term
How many inspection sheets?
Definition
2 one for each rope
Term
What are the dimensions for the anchor rope w/ eye splices?
Definition
6'x .75
Term
How many pieces of yellow multi loop webbing?
Definition
2, 3 feet in length
Term
What is the length and size of the equipment line?
Definition
150'x .75"
Term
What is the breaking stenght of the equipment line?
Definition
13,000lbs
Term
The working strength of the equipment line is what?
Definition
2,600lbs safe working load
Term
What is the construction of the equipment line? the inner core carries how much of the load?
Definition
double braid, inner core is polyester and carries 80% of the load. outer jacket is multiplex polyester
Term
What % of the strands are blue? These blue strands are designed for what?
Definition
25%, abrasion and good grip w/ or w/o gloves?
Term
What are the uses of the equipment line?
Definition
securing equip., hosting equip., and barracading restricted areas
Term
The equipment line is stored in what color bag?
Definition
Blue
Term
Wher can you carry a drop bag?
Definition
B/A harness or turnout coat on D-ring
Term
Efficiency of eye splice?
Definition
10%
Term
efficiency of figure 8?
Definition
20%
Term
efficiency of timber hitch/half hitch?
Definition
35%
Term
efficiency of bowline; clove hitch?
Definition
40%
Term
efficiency of square knot?
Definition
50%
Term
Efficiency of overhand knot?
Definition
55%
Term
8mm nylon prussik cord is rated at what strength?
Definition
3630lbs tensile strength.
Term
How long is the throw bag rope? and size
Definition
75 feet 7/16 in size
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