Ropes, Knots & Lines

Question 1

4 Uses of Ropes

Answer 1

• Tying off
• Hauling items aloft
• Guy Lines
• Rescue

Question 2

Types of rope

Answer 2

Natural Fibre

Synthetic Fibre

Question 3

Types of natural fibre rope

Answer 3

Hemp

Manila

Sisal

Coir

Cotton

Question 4

Types of synthetic fibre ropes

Answer 4

Nylon

Terylene

Polyproylene

Polyester

Question 5

Disadvantage of Natural Fibre rope

Answer 5

Will rot if stored wet

Low shock absorbing capacity

Approximately half the strength of synthetic ropes

Question 6

Advantages of Synthetic Ropes

Answer 6

Smooth, Flexible, pleasant to handle

2x strength of natual fibre

Ability to absorb shock loads

Can be stored wet

Rot and mildew resistant

Good resistance to abrasion

Question 7

Disadvantage of Synthetic Ropes

Answer 7

Tendancy to slip while applying a knot

Nylon ropes stretch under load

Question 8

4 compontents in the construction of rope

Answer 8

Fibre: Threadlike cell or filament

**Yarn: **A number of fibers wound together

**Strand: **A number of yarns wound in the opposite direction

**Rope: **3 strands wound in the opposite direction.

Question 9

Identify type of rope

Answer 9

S lay rope

Question 10

Identify type of rope

Answer 10

Z lay rope

Question 11

Describe Kernmantle rope

Answer 11

Core of continuous synthetic fibres (KERN)

Encased in a protective, braided outer sheath (MANTLE)

Stronges rope construction

No twisting of fibres

Made of poylester or nylon

Can be Static or Dynamic

Question 12

What are % of stretch in

a. Static Kernmantle
b. Dynamic Kernmantle

Answer 12

a. 2%
b. 12%-13%

Question 13

How is rope size determined?

Answer 13

The number of yarns twisted into a strand

Question 14

Rope diameter is indicated in __________

General rope diameter is ______

Answer 14

Rope diameter is indicated in millimetres

General rope diameter is 13mm

Question 15

How is rope length indicated?

Answer 15

1 red band per 10m at each end

Question 16

Whay are rope lengths marked in the middle?

Answer 16

• Easy to identify bight

Use would include tying a clove hitch around suction lenght

Question 17

What factors effect the strength of a rope?

Answer 17

Knots

Sharp Bends

Mechanical Damage

Shock

Heat

Chemical Damage

Question 18

Causes of Mechanical Deterioration in rope.

Answer 18

Abrasion

Sharp Bends/Edges

Dirt or grit on the rope

Shock

Overloading

Question 19

Causes of Chemical Deterioration in rope:

Answer 19

Oils

Acids and Alkalis

Mildew and mould

Heat

Sunlight

Question 20

Rope will deteriorate throughout it’s life depending on:

Answer 20

• Amount of use
• How it is treated
• The care it is given after use.

Question 21

What lengths are rescue lines generally stowed in?

Answer 21

50m

100m

200m

Question 22

Define “Running End”

Answer 22

The free end of a line

Question 23

Define “Standing Part”

Answer 23

The part of a rope that is fixed or taking a load

Question 24

Define “Line”

Answer 24

A rope of a specific length for a specific purpose.

Rescue Line

Personal Line

Question 25

6 Characteristics of Knots

Answer 25

1. Easy to tie 2. Easy to untie 3. Should not over-tighten when wet 4. Will not excessivley weaken the rope 5. Carries out the function for which it is employed 6. Neatly dressed

Question 26

Idendity and Use

Answer 26

Overhand Knot Use: Stopper knot

Question 27

Identity and Use

Answer 27

Figure 8 Knot Use: Stopper knot

Question 28

Identity and Use

Answer 28

Reef Knot Use: Join two lines of equal diameter

Question 29

Identity and Use

Answer 29

Sheet Bend Use: Join two lines of different diameter

Question 30

Identity and Use

Answer 30

Double Sheet Bend Use: Join two lines of different diameter (CFA Prefered)

Question 31

Identity and Use

Answer 31

Timber Hitch Use: Hoisting timber or irregular objects

Question 32

Identity and Use

Answer 32

Clove Hitch Use: Tying off and Hoisting

Question 33

Identity and Use

Answer 33

Rolling Hitch Use: Directional pull/load

Question 34

Identity and Use

Answer 34

Round Turn & Two Half Hitches Use: Tying off

Question 35

Identity and Use

Answer 35

Sheepshank Use: Shorten or bypass damaged rope

Question 36

Identity and Use

Answer 36

Bowline Use: Form a loop (non slipping)

Question 37

Identity and Use

Answer 37

Bowline on the bight Use: Form two loops