6/4 Ropes And Knots Flashcards
Main line & belay line inventory; x14
1.One 300 foot low stretch 1/2 inch static kernmantle lifeline, white in color, with blue or red stripes running through it, stored in a red nylon bag (Main Line)
2.One 300 foot low stretch 1/2 inch static kernmantle rope, orange in color, stored in an orange nylon bag (Safety / Belay Line)
3.Three class III full body rescue harnesses size one small / medium, two large (TruckCompanies)
4.Two 8-mm accessory cords 20 feet in length to build two load releasing hitches (LRH)
5.Two stainless steel brake bar racks, with six aluminum bars
6.Eight steel “D” shaped carabiners
7.Two 8-mm x 6 foot accessory cord (long prusik)
8.Two 8-mm x 5 foot accessory cord (short prusik)
9.Two pieces of blue 1 inch tubular webbing 5 feet in length
10.Two pieces of yellow 1 inch tubular webbing 12 feet in length
11.Two pieces of red 1 inch tubular webbing 20 feet in length
12.Two inspection record sheets, one for each rope
13.One 2 inch x 7 foot anchor strap with “D” rings at both ends
14.Two pieces of yellow multi-loop webbing 3 foot in length
The main line is connected to the ____D ring. The belay/ saftey line is connected to the ___ D ring.
Waist/ chest
Connect the main line and belay line to these D ring connection points by using a figure eight on a bight and a carabiner. If you do not have a carabiner, you can use a ________ or ____
Figure eight follow through or bowline backed up with a double overhand knot.
The following shows the class 3 full body rescue harness properly donned with th proper tightening order
1.
2.
3.
Waist
Legs
Chest
Carabiners used in the LAFD rope rescue kits are steel D shaped carabiners , rated at ____ pounds
9000
Rappelling or lowering operations over ____ ft a brake bar rack should be used, due to the twisting of the rop
75ft
The brake bar rack comes with ___ aluminum bars attached to it. The welded eye on one end, is used for attachment and is rated at ______ pounds
6; 10,000 pounds
Brake bar rack
For a single person load, start with ___ bars. For a 2 person load, start with ___ bars. The maximum would be six , and the minimum should never be less than ____ during any operation.
4 bars/ 5 bars
Min of 3
Tying off valve the brake bar rack
Wrap the rope twice over the _____ and through the brake bar rack pulling the bars together. Tie the rope off with two ___ in front of the brake bar rack
Yoke; half hitches
The bars are made of aluminum and should be checked routinely. Check for wear, cracks , and dents. If the bars appear damaged or worn the entire brake bar rack should be sent to ____ for evaluation and replacement.
USAR 88
Pickets:
Pickets should be ___ ft in length, ___ in. Round steel stock preferred. These pickets should be pounded ____ ft into the ground, at a ____ degree angle away from the object.
3ft length
1in. Round
2ft into ground
15 degree angle
Pickets;
Single picket =
1-1=
1-1-1=
2-1=
3-2-1=
Single picket = 700
1-1= 1400
1-1-1=1800
2-1=2000
3-2-1=4000
1/2 inch KM-III static kernmantle rope is constructed of a tightly woven sheath (Mantle), over a braided core (Kern). The high strength core (Kern) can carry up to _____% of the load with the cover (Mantle) designed primarily for protection against abrasion.
90% kern
Lifeline rope
This rope is rated at ____ pounds and weighs ___ pounds per 100’ which exceeds the NFPA _____ standard for one and 2 person rescues
10,000/ 7 pounds
NFPA 1995
To determine the safe working load of a rope, you divide the manufacture rated tensile strength by the NFPA safety factor of ____. Which exceeds the NFPA standard of ____ for a 2 person rope.
15; 600 pounds
- 10,000lbs divided by 15 = 666 which is greater than 600lb standard
The webbing used by the LAFD is a 1 in spiral weaved tubular and folded over flat webbing rated at____ pounds.
4000 pounds
Webbing lengths;
X3
Blue = 5ft
Yellow = 12ft
Red = 20ft
Accessory cord is __mm nylon cord. Rated at ____ pounds
8mm / 3630 pounds
Accessory cord lengths;
Short prusiks ;
Long prusik ;
LRH;
5ft
6ft
20ft
Building a load releasing hitch
When you pull the carabiner that is attached to the bight in the rope until the minter hitch flips over in the second carabiner.
There should be a ___ to ___ in space between carabiners.
4 to 5in
Building LRH;
Take both lines that exit the minter hitch and wrap them around the line between the carabiners ___ to ___ times
3 to 6
Building LRH;
The carabiner with the minter hitch should always be placed on the ______side of your system.
Anchor
Abrasion guards
Abrasion guards ___ in
18
The best way to remove dirt particles from a rope is to place the rope in a mesh bag or a pillowcase, place in a washing machine on gentle cycle and wash in cold water. Use a mild chemical free soap such as ______,______,_______ in the wash
Lifeline cleaner, ivory snow, or woolite
