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Volume 3 > 6/4 Ropes and Knots > Flashcards

6/4 Ropes and Knots Flashcards

1
Q

Ropes (lines) in use by the LAFD are made of synthetic fibers, range in size from ____ in diameter and in lengths to 300’

A

1/4” to 3/4”

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2
Q

Two___ accessory cords ___ in length to build two load releasing hitches

A

8-mm / 20 feet

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3
Q

___ class III full body rescue harnesses size large (Engine Company)

A

Two

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4
Q

___ class III full body rescue harnesses size _____ (Truck Companies)

A

Three / one small / medium, two large

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5
Q

Two stainless steel brake bar racks, with ____.

A

six aluminum bars

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6
Q

___ steel “D” shaped carabiners

A

Eight

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7
Q

One _____ anchor strap with “D” rings at both ends

A

2 inch x 7 foot

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8
Q

Two pieces of yellow multi-loop webbing ____ in length

A

3 foot

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9
Q

The main line is connected to the ____ “D” ring.

A

waist

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10
Q

The belay / safety line is connected to the ____ “D” ring.

A

chest

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11
Q

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 a ______.

A

figure eight follow through / bowline backed up with a double overhand knot

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12
Q

Carabiners used in the LAFD rope rescue kits are steel “D” shaped carabiners, rated at ____ pounds. The basic parts of a carabiner include the ______.

A

9,000 / spine, hinge, gate, and latch.

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13
Q

The “D” shaped carabiner is designed to carry the load along the ___ side. The ___ side is longer than the gate side.

A

spine

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14
Q

“D” shaped carabiners are the strongest when the material in the carabiner is pulled in the ____of the carabiner, next to the spine. If material pulls across the ends of the carabiner (such as wide webbing does), then there will be greater stress on the gate side of the carabiner.

A

small area

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15
Q

Never tighten a carabiner using _____.

A

channel locks.

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16
Q

Never ____ a carabiner when the system is loaded. This may damage the locking mechanism.

A

re-tighten

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17
Q

Never ___ a carabiner.

A

side load

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18
Q

Rappelling or lowering operations over ____ a brake bar rack should be used, due to the twisting of the rope.

A

75 feet

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19
Q

One of the major advantages of the brake bar rack is the way the rope runs straight through it, greatly reducing _____ during long lowering and rappelling operations.

A

twisting in the rope

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20
Q

The brake bar rack comes with _____ attached to it.

A

six aluminum bars

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21
Q

The welded eye, on one end, is used for attachment and is rated at ____ pounds.

A

10,000

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22
Q

For a single person load (rappel or lower), start with ___ bars.

A

four

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23
Q

For a two-person loads, start with ____ bars.

A

five

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24
Q

The maximum would be six, and the minimum should never be less than ___ during any operation

A

THREE

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25
Q

Pickets should be ____ in length, _____ round steel stock preferred.

A

three foot / one inch

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26
Q

The pickets should be pounded _____ into the ground, at a ______, away from the object.

A

two feet / 15 degree angle

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27
Q

Single picket =

A

700 pounds

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28
Q

1-1 picket =

A

1400 pounds

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29
Q

1-1-1 picket =

A

1800 pounds

30
Q

2-1 picket =

A

2000 pounds

31
Q

3-2-1 picket =

A

4000 pounds

32
Q

The high strength core (Kern) can carry up to ____ of the load with the cover (Mantle) designed primarily for protection against ____

A

90% / abrasion.

33
Q

This rope is rated at ___ pounds and weighs _____, which meets or exceeds the NFPA 1995 standard for one and two - person rescues.

A

10,000 / 7 pounds per –100 feet

34
Q

Tensile strength is the rated breaking strength of the rope when pulled in a ____, with ___, under laboratory conditions to a point where it can be expected to break.

A

straight line / no knots

35
Q

To determine the safe working load of a rope, you divide the manufacturers rated tensile strength by the NFPA safety _____. E.g. 10,000 - pound rope divided by 15 = 666 pound working load, which exceeds the NFPA standard of ____.

A

factor of 15 / 600 pounds for a two-person rope.

36
Q

There are various widths for webbing ranging from _____.

A

½ inch up to 2 inches

37
Q

Blue webbing is

A

5 feet

38
Q

Yellow webbing is

A

12 feet

39
Q

Red webbing is

A

20 feet

40
Q

LRH : Take both lines that exit the munter hitch and wrap them around the line between the carabiners ____.

A

three to six times.

41
Q

LRH : There should be a ____ space between the carabiners.

A

4 to 5 inch

42
Q

The two ___ abrasion guards are designed to slide over the lifeline to any point where the line passes over the edge of a roof, rocks, or any other rough object that would cause abrasion to the rope.

A

18” inch

43
Q

The best way to remove dirt particles from a rope is to place the rope in a ____, place in a washing machine on ____.

A

mesh bag or a pillowcase / gentle cycle and wash in cold water

44
Q

Use a mild chemical free soap such as lifeline cleaner, _____

A

Ivory Snow or Woolite

45
Q

The KM-III static kernmantle rope has a melting point of ____ Fahrenheit.

A

450 degrees

46
Q

Use only the following markers, as other markers will weaken the fibers of the rope. ________

A

Carter MARKS-A LOT, Stanford SHARPIE and Binney-Smith MAGIC MARKER.

47
Q

The lifeline can be washed if it becomes dirty. Use ______ or _____ ONLY.

A

warm water with approved cleaners / cold water

48
Q

The equipment line is _____ diameter rope with a factory eye splice on one end and a crown splice or whipping on the other end.

A

150’ of 5/8”

49
Q

Equipment Line : It has a ____ breaking strength and its working load is _____.

A

13,000 lb. / 2,600 lb.

50
Q

Equipment Line : Its double braid construction has an inner core of braided polyester which carries ___ of the load.

A

80%

51
Q

Equipment Line : The outer jacket is a multiplex polyester fiber (Dacron) within which _____ of the strands are blue.

A

25%

52
Q

The 20 foot extension ladders use ____ equipment line

A

3/8 inch

53
Q

The 35 foot extension ladders use ____ equipment line

A

5/8 inch

54
Q

A dropline is 150’ of _____ braided line with a snap device attached to one end.

A

5/16” Dacron

55
Q

Knot % of loss

Eye Splice =

A

10%

56
Q

Knot % of loss

Timber Hitch, half hitch =

A

35%

57
Q

Knot % of loss

Bowline, clove hitch =

A

40%

58
Q

Knot % of loss

Square knot =

A

50%

59
Q

Knot % of loss

Overhand knot =

A

55%

60
Q

For safety, completed knot should have a minimum _____

A

18” tail.

61
Q

Empty line up : Timber hitch ____ back of nozzle.

A

six feet

62
Q

Empty line down : Timber hitch six feet back of nozzle. Half hitch, ___ behind the nozzle. Half hitch around the _____.

A

inches / nozzle tip

63
Q

Loaded line up : Running bowline ____ back of nozzle. Half hitch ____ back of nozzle. Half hitch _____ back of nozzle.

A

12 feet / six feet / six inches

64
Q

Loaded line down : same as up except half hitch around _____.

A

nozzle tip

65
Q

Ladders (except roof) : With the rungs down take a wrap around each beam below proper rung; secure bitter end to running line with a ____. (To determine proper rung, divide the length of the ladder by ______).

A

bowline knot / five and multiply by 2

66
Q

Roof Ladder : The same as other ladders except wraps around both beams are taken below ____ from top; secure bitter end to running line with a bowline knot and place a half hitch over the open hooks.

A

third rung

67
Q

Ball and Chain : ____ through the ring on the chain. With a separate line, ____ around chain immediately above ball.

A

Bowline / clove hitch-down

68
Q

Joining two lines : ___ or square knot. A square knot should only be used on lines of ____.

A

Beckett bend / equal size

69
Q

Securing Hard Suctions :
Clove hitch at ____ next to strainer; hitch separated to be on both side of male coupling lugs of suction. With the OTHER end of the rope, tie a ____ on the first coupling above the strainer. Secure center of rope to apparatus or any convenient place on the wharf.

A

bottom / running bowline

70
Q

Small hand lines aloft : The loop is then placed over the hose ____ behind the nozzle.

A

12”-18”

71
Q

Coiling rope for throwing :

With sufficient line to reach objective, make coils about ____ in diameter.

A

three feet

72
Q

Coiling rope for throwing :

Leave enough line at the end to make ___ smaller coils about ____ in diameter. Bind small coils with a bight.

A

4 or 5 / 18”

Volume 3 (10 decks)

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