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Book 29 > Rope Systems > Flashcards

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
Q

Rope Systems

BRAKE BAR RACK TYING OFF

A

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

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26
Q

Rope Systems

FIGURE 8 PLATE

A

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
Q

Rope Systems

PULLEYS

A

Reduce friction on turns

Build mechanical advantage

28
Q

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?

A

4

29
Q

Rope Systems

Size of Pulleys

A

2 1/2” aluminum prusik mining

4” stainless steel

30
Q

Rope Systems

SEAT HARNESSES

A

Class III FULL BODY RESCUE HARNESS

  1. WAIST (MAIN)
  2. LEGS
  3. CHEST (BELAY)
31
Q

Rope Systems

TENSILE STRENGTH

A

Pulling on a rope in a straight line until it breaks

*bends weaken that area of rope

32
Q

Rope Systems

KNOT EFFICIENCY

A

Percentage of rope strength that remains after a knot is tied in the rope

33
Q

Rope Systems

LAFD uses the following knots because of?

A

STRENGTH
SIMPLICITY
EASE OF UNTYING
after having been loaded

34
Q

ROPE SYSTEMS

OVERHAND

A

Tie off knots in webbing(seat harness) and in making other knots

35
Q

Rope Systems

MUNTER HITCH

A

Used to create a load releasing hitch and supply friction in all types of rope systems

36
Q

Rope Systems

GIRTH HITCH/LARKS FOOT

A

Secure webbing/rope to an anchor and secure a nozzle using a drop bag

37
Q

Rope Systems

CLOVE HITCH

A

Tie off a crowbar, extinguisher, etc

38
Q

Rope Systems

FIGURE 8 STOPPER KNOT

A

75%

End of throw bag, lifeline and drop bag rope

39
Q

Rope Systems

FIGURE 8 FOLLOW THROUGH

A

80%

Used to tie the end of a rope around an anchor

40
Q

Rope Systems

FIGURE 8 ON A BIGHT

A

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
Q

Rope Systems

FIGURE 8 BEND

A

80%

Tie two ropes of the same size together

42
Q

Rope Systems

DOUBLE FIGURE 8 ON A BIGHT

A

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
Q

Rope Systems
DOUBLE OVERHAND BEND
“DOUBLE FISHERMAN”

A

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
Q

Rope Systems

PRUSIK LOOP

A

3 wrap prusik

45
Q

Rope Systems

WATER KNOT/OVERHAND BEND

A

65%

Join two pieces of webbing together

46
Q

Rope Systems

OVERHAND LOOP

A

Used to create a loop in the end of a length of webbing

Strong but difficult to untie

47
Q

Rope Systems
TENSIONLESS HITCH
“NO KNOT”

A

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
Q

Rope Systems
NO KNOT
Number of wraps depends on diameter of anchor point and amount of friction it provides

A

Small diameter requires more wraps

Min 3 wraps

49
Q

Rope Systems
NO KNOT
Rope should not cross over itself

A

If anchor is above load, rope should be spiral wrapped up with the standing end at the top

50
Q

Rope Systems
NO KNOT
If a carabiner is not available?

A

Figure 8 follow through

51
Q

Rope Systems

BOWLINE

A

65%

Back up with double overhand for safety

52
Q

Rope Systems

BUTTERFLY KNOT

A

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
Q

Rope Systems

LOAD RELEASING HITCH

A

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
Q

Rope Systems
LRH
knots

A

2” tail on overhand

4-5” space between 2 carabiners

55
Q

Rope Systems

CHEST HARNESS

A 
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
Q

Rope Systems

MAKE A CHEST HARNESS

A 
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
Q

Rope Systems

ANCHOR SYSTEMS

A

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
Q

Rope Systems

ANCHOR TYPES

A 
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
Q

Rope Systems

CLIFF PICKETS

A 
Single 700lbs
1-1:   1400lbs
1-1-1:   1800lbs
2-1:    2000lbs
3-2-1:  4000lbs
60
Q

Rope Systems

CLIFF PICKETS ANGLES

A

15 deg

2’ deep

61
Q

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

A

6” main line

6-10” belay

62
Q

Rope Systems

Minimum members needed for 2 line system

A

4

  1. Rescuer
  2. Belay/safety line tender
  3. Main line tender
  4. Safety member (checks complete system) TSO
63
Q

Rope Systems
SAFETY
Never get closer than ___ feet to the edge without being tied off

A

5 ft

Book 29 (3 decks)

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