Rope Systems Flashcards

1
Q

Rope Systems

Equipment List

A

(1) 300’ low stretch 1/2” static kernmantle lifeline, white in color, blue or red stripes running through it, red bag
(1) 300’ low stretch 1/2” static kernmantle rope, orange, orange nylon bag
(2) class III full body rescue harnesses L (engine)
(3) class III full body rescue harnesses size 1s/m, 2L
(2) 8mm accessory cords 20’
(2) stainless steel brake bar racks
(8) steel “D” shaped caribiners
(2) 8mm 6’ accessory cords
(2) 8mm 5’ accessory cords
Webbing (2-blue 5’, 2-yellow 12’, 2- red 20’)
(2) inspection record sheets (1 per rope)
1- 2” x7’ anchor strap with “D” rings
2- yellow multi loop webbing 3’ in lengthy

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2
Q

Rope Systems
SOFTWARE
LIFELINE

A
1/2" KM-III 
Static Kernmantle
Tightly woven sheath (Mantle) over a braided core (KERN)
Kern- carries 90% of the load 
Mantle- covers and protects against abrasion
Rated 10,000lbs
7lbs per 100'
Meets or exceeds NFPA 1995 standard
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3
Q

Rope Systems
SOFTWARE
TENSILE STRENGTH

A

Rated breaking strength of the rope when pulled in a straight line
No knots under laboratory conditions

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4
Q

Rope Systems
SOFTWARE
NFPA SAFETY FACTOR

A

15
10,000/15=666
exceeds NFPA standard of 600lbs for a 2 person rope

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5
Q

Rope Systems
SOFTWARE
CLEANING AND CARE

A

Place rope in a mesh bag or pillowcase, in a washing machine on GENTLE CYCLE, COLD WATER
Mild chemical free soap: LIFELINE CLEANER, IVORY SNOW, or WOOLITE
Drip dry out of direct sunlight
Swap rope ends annually

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6
Q

Rope Systems
SOFTWARE
SUNLIGHT

A

All synthetic fibers are prone to degradation due to prolonged exposure to UV radiation
Store in cool dry location

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7
Q

Rope Systems
SOFTWARE
CHEMICALS

A

Avoid chemicals containing ALKALINE, OXIDIZING AGENTS, BLEACHING COMPOUNDS, and ACIDS

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8
Q

Rope Systems
SOFTWARE
MELTING POINT

A

450 DEGREES

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9
Q

Rope Systems
SOFTWARE
MARKING

A

Mark MIDPOINT and ENDS
1 black stripe for ODD YEARS
2 black stripes for EVEN YEARS

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10
Q

Rope Systems
SOFTWARE
APROVED MARKERS

A

CARTER MARKS A LOT
STANFORD SHARPIE
BINNEY SMITH MAGIC MARKER

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11
Q

Rope Systems

LOG ROPE

A

Log rope in 975:

  • as soon as you receive it
  • TRAINING
  • EMERGENCY INCIDENTS
  • MONTHLY CHECKS
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12
Q

Rope Systems

MONTHLY CHECKS

A

SHEATH is ABRADED, showing extreme fuzziness or exposing core
Rope is LUMPY or HARD, or if BRITTLE SPOT
HOURGLASS SHAPE
Rope contacts any chemicals
Shock loaded rope

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13
Q

Rope Systems
SOFTWARE
DAMAGED IF LEFT IN

A
SUNLIGHT
VEHICLE EXHAUST/BATTERY RESIDUE
FLOOR
WET/DAMP AREAS
HIGH HEAT
CONTAMINATED DIRT OR GRIT
AVOID DRAGGING ON GROUND
NEVER STEP ON ROPE
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14
Q

Rope Systems

FLAT WEBBING

A

Single layer of material
Similar to ladder straps
Less expensive, stiffer and more difficult to work with

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15
Q

Rope Systems

TUBULAR WEBBING

A

EDGE STITCHED: folding over flat webbing lengthwise

SPIRAL WEAVE: (shuttle loom) standard for rope rescue ops

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16
Q

Rope Systems

Webbing Size and Colors

A
1/2" to 2" 
LAFD USES 1"
BLUE 5'
YELLOW 12'
RED 20'
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17
Q

Rope Systems

WEBBING RATING

A

4000lbs

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18
Q

Rope Systems

ACCESSORY CORD

A

8mm nylon cord
LRH and PRUSIK LOOPS
3630lbs

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19
Q

Rope Systems
HARDWARE
CARABINERS

A
Steel "D" shaped
Rated 9,000lbs
Spine
Hinge
Gate
Latch
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20
Q

Rope Systems
HARDWARE
CARABINERS Load carried where?

A

Spine

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21
Q

Rope Systems

CARABINERS LOCKING

A

Light finger tightness

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22
Q

Rope Systems

CARABINERS NEVER

A

Tighten with channel locks
Re tighten when system is loaded
Side load

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23
Q

Rope Systems

BRAKE BAR RACK

A

6 Aluminum bars

Welded eye 10,000lbs

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24
Q

Rope Systems

BRAKE BAR RACK MINIMUM BARS

A

1 person load -start with 4
2 person loads-5
NEVER LESS THAN 3

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25
Rope Systems | BRAKE BAR RACK TYING OFF
2 wraps over the yoke and through the brake bar rack pulling bars together Tie rope off with 2 half hitches in front of the brake bar rack
26
Rope Systems | FIGURE 8 PLATE
With/Without ears Varying diameters Tend to twist the rope during use Once on the rope, difficult to increase friction Over 75' operations use brake bar rack due to twisting
27
Rope Systems | PULLEYS
Reduce friction on turns | Build mechanical advantage
28
Rope Systems Strength of the rope is restored fully when placed over a turn of a pulley that is at least ___ times the diameter of the rope?
4
29
Rope Systems | Size of Pulleys
2 1/2" aluminum prusik mining | 4" stainless steel
30
Rope Systems | SEAT HARNESSES
Class III FULL BODY RESCUE HARNESS 1. WAIST (MAIN) 2. LEGS 3. CHEST (BELAY)
31
Rope Systems | TENSILE STRENGTH
Pulling on a rope in a straight line until it breaks | *bends weaken that area of rope
32
Rope Systems | KNOT EFFICIENCY
Percentage of rope strength that remains after a knot is tied in the rope
33
Rope Systems | LAFD uses the following knots because of?
STRENGTH SIMPLICITY EASE OF UNTYING after having been loaded
34
ROPE SYSTEMS | OVERHAND
Tie off knots in webbing(seat harness) and in making other knots
35
Rope Systems | MUNTER HITCH
Used to create a load releasing hitch and supply friction in all types of rope systems
36
Rope Systems | GIRTH HITCH/LARKS FOOT
Secure webbing/rope to an anchor and secure a nozzle using a drop bag
37
Rope Systems | CLOVE HITCH
Tie off a crowbar, extinguisher, etc
38
Rope Systems | FIGURE 8 STOPPER KNOT
75% | End of throw bag, lifeline and drop bag rope
39
Rope Systems | FIGURE 8 FOLLOW THROUGH
80% | Used to tie the end of a rope around an anchor
40
Rope Systems | FIGURE 8 ON A BIGHT
80% Knot creates a loop at the end of the rope for attaching to anchors, hardware, and other ropes with the use of a carabiner
41
Rope Systems | FIGURE 8 BEND
80% | Tie two ropes of the same size together
42
Rope Systems | DOUBLE FIGURE 8 ON A BIGHT
80% Strong knot Two loops reduce the wear and strength loss from the rope bending around the carabiner by splitting the load between two loops
43
Rope Systems DOUBLE OVERHAND BEND "DOUBLE FISHERMAN"
80% Used to tie two ends of cord together to create a prussic loop 5' and 6' Good knot for attaching two equal or unequal diameter ropes together, backs up bowlines
44
Rope Systems | PRUSIK LOOP
3 wrap prusik
45
Rope Systems | WATER KNOT/OVERHAND BEND
65% | Join two pieces of webbing together
46
Rope Systems | OVERHAND LOOP
Used to create a loop in the end of a length of webbing | Strong but difficult to untie
47
Rope Systems TENSIONLESS HITCH "NO KNOT"
100% Have enough wraps around the object so standing end of rope will have no tension on it Tension of rope is absorbed by the friction of the wraps of rope around the object
48
Rope Systems NO KNOT Number of wraps depends on diameter of anchor point and amount of friction it provides
Small diameter requires more wraps | Min 3 wraps
49
Rope Systems NO KNOT Rope should not cross over itself
If anchor is above load, rope should be spiral wrapped up with the standing end at the top
50
Rope Systems NO KNOT If a carabiner is not available?
Figure 8 follow through
51
Rope Systems | BOWLINE
65% | Back up with double overhand for safety
52
Rope Systems | BUTTERFLY KNOT
75% | Used to tie a loop in the middle of a rope in situations where the ends of the rope may also be carrying a load
53
Rope Systems | LOAD RELEASING HITCH
8mm accessory cord 20' long 1. Shock absorber when the main line or belay line is shock loaded 2. Pass knots through the system
54
Rope Systems LRH knots
2" tail on overhand | 4-5" space between 2 carabiners
55
Rope Systems | CHEST HARNESS
``` Used when using a class II seat harness Eliminates the possibility of becoming inverted and having your body fall out of the seat harness ```
56
Rope Systems | MAKE A CHEST HARNESS
``` 10-14' One inch tubular webbing Make a loop with a WATER knot Make a "X" in loop Place arm through loopholes Place "X" in middle of back Tie an OVERHAND in both pieces of webbing that come over your shoulder Connect both loops via carabiner Connect the same carabiner to the seat harness ```
57
Rope Systems | ANCHOR SYSTEMS
Mainline and belay line can share the same anchor if it is BOMBPROOF Must use separate pieces of webbing Main and Belay should not share any other components Primary component of system If not bombproof, back anchor as much as possible to create a bombproof anchor
58
Rope Systems | ANCHOR TYPES
``` Vehicles Apparatus eyes Rims and axles Car posts Concrete Post and Pillars Telephone poles Picked Fence post Trees (large trunks, no exposed roots, live trees ```
59
Rope Systems | CLIFF PICKETS
``` Single 700lbs 1-1: 1400lbs 1-1-1: 1800lbs 2-1: 2000lbs 3-2-1: 4000lbs ```
60
Rope Systems | CLIFF PICKETS ANGLES
15 deg | 2' deep
61
Rope Systems PASSING KNOTS Pass the main line through the brake bar rack until the knot is about___ inches from the bottom of the brake bar rack
6" main line | 6-10" belay
62
Rope Systems | Minimum members needed for 2 line system
4 1. Rescuer 2. Belay/safety line tender 3. Main line tender 4. Safety member (checks complete system) TSO
63
Rope Systems SAFETY Never get closer than ___ feet to the edge without being tied off
5 ft