2Nd Year Rigging

Front 1

What are the two types of fibre ropes?

Back 1

Synthetic fibre and natural fibre

Front 2

What are two common synthetic fibre ropes?

Back 2

Nylon and polypropylene

Front 3

What are two natural fibre ropes?

Back 3

Manila and hemp

Front 4

What colour is nylon rope?

Back 4

White

Front 5

Which group is most resistant to rot?

Back 5

Nylon

Front 6

Which rope is resistant to rot, organic solvents and alkalis?

Back 6

Nylon

Front 7

Which rope is most resistant to cuts and abrasions?

Back 7

Nylon

Front 8

Which rope has the best elasticity / shock-absorption?

Back 8

Nylon

Front 9

Which is stronger, nylon rope or Manila rope?

Back 9

Nylon rope is 2.5 times stronger than Manila.

Front 10

What rope is typically yellow, but also comes in other colours?

Back 10

Polypropylene

Front 11

Which rope is flexible in cold temperatures?

Back 11

Polypropylene

Front 12

Which group is lightweight and floats on water?

Back 12

Polypropylene

Front 13

Which rope is resistant to acids?

Back 13

Polypropylene

Front 14

Which rope is a non conductor of electricity?

Back 14

Polypropylene

Front 15

What grade does Manila rope have to be?

Back 15

Grade 1

Front 16

What colour is Manila rope?

Back 16

Yellowish Brown

Front 17

Which rope doesn't burn easily?

Back 17

Manila

Front 18

What is the strongest natural fibre rope?

Back 18

Hemp

Front 19

Why is hemp rope not used?

Back 19

It deteriorates quickly.

Front 20

How should you store ropes?

Back 20

Hung up in a well-ventilated area off the ground

Front 21

What is the safety factor for materials and equipment?

Back 21

5 to 1 ratio

Front 22

What is the safety factor for personnel use?

Back 22

10 to 1 ratio

Front 23

What is the safety factor for elevator ropes?

Back 23

20 to 1 ratio

Front 24

What do you look for when inspecting ropes?

Back 24

Ropes are not frozen. No Cuts rips abrasions or discoloration. Inside fibres are free from dust frays and damage.

Front 25

What do you do to natural fibre ropes to keep the ends from fraying?

Back 25

Whip them with twine or tape them

Front 26

What do you do to synthetic fibre ropes to keep the ends from fraying?

Back 26

Melt them or burn them.

Front 27

What do you call the end of the Rope you are working with when tying knots?

Back 27

The running end

Front 28

What do you call the inactive part of the Rope when tying knots?

Back 28

Standing part

Front 29

What do you call the central part of the Rope between the Running and Standing ends?

Back 29

Bight

Front 30

Iwrc wire rope has a core made of what?

Back 30

Small diameter rope

Front 31

Iwrc wire rope is used for lifting. true or false?

Back 31

True

Front 32

What does iwrc stand for?

Back 32

Independent wire rope core

Front 33

Which type of wire rope has a resistance to crushing and increased tensile strength?

Back 33

Iwrc

Front 34

Which wire rope is less capable of shock loading and less resilient?

Back 34

Iwrc

Front 35

Which type of wire rope Has a core made of Manila, nylon, or polypropylene?

Back 35

Fibre rope core

Front 36

Which type of wire rope is not suitable for high temperatures And should not be used when Frozen?

Back 36

Fibre core

Front 37

Which type of wire rope is flexible and has increased elasticity?

Back 37

Fibre core

Front 38

In which wire rope are the core and the outer strands the same?

Back 38

Wire strand core

Front 39

Wire strand core can be used for hoisting. True or false?

Back 39

False

Front 40

Wire strand core ropes are primarily used for what?

Back 40

Crane pendants, guy lines on transmission towers

Front 41

With a wire rope, what characteristics come with having a smaller number of strands?

Back 41

Larger-diameter strands, greater abrasion resistance

Front 42

With a wire rope, what characteristics come with having a larger number of strands?

Back 42

Higher resistance to bending fatigue less abrasion resistance

Front 43

Right lay rope goes which direction? Left lay rope goes which direction?

Back 43

Right lay goes clockwise left lay counterclockwise

Front 44

Describe a regular lay rope.

Back 44

Wires twist One Way strands twist the opposite way.

Front 45

Which Lay is resistant to kinking and twisting?

Back 45

Regular lay

Front 46

Describe a lang lay rope.

Back 46

Wires and strands are twisted in the same direction.

Front 47

Which Lay is not suited for hoisting?

Back 47

Lang lay

Front 48

Which lay has a greater wearing surface, But is resistant to abrasion?

Back 48

Lang lay

Front 49

Describe non-rotating ropes.

Back 49

Two layers of strands one right lay one left lay. Used for hoisting with a single line.

Front 50

What is the formula for working load limit for wire ropes?

Back 50

WLL= D²× 8

Front 51

What is the most efficient type of manual hoist?

Back 51

Spur geared chain hoist

Front 52

When using an electric chain hoist what must you pay special attention to?

Back 52

Ensure the load does not get caught on anything.

Front 53

What is the density of steel?

Back 53

40 lb/ft² /1" thick

490lb/ft³

Front 54

What formula do you use to calculate the weight of a pipe?

Back 54

Pi x diameter X length X wall thickness X density

Front 55

What formula do you use to calculate the weight of a block?

Back 55

Length x width x height X density

Front 56

What formula do you use to calculate the weight of a ring?

Back 56

(Pi×R²×h)-(pi×R²×h) x density

Front 57

What is the recommended sling angle?

Back 57

60 degrees

Front 58

What is the sling tension formula?

Back 58

T=W/N×L/V

Front 59

How many pounds are in 1 ton?

Back 59

2000

Front 60

How do you calculate the load on each line of a block and tackle system?

Back 60

Total load divided by number of lines

Front 61

How do you do friction calculations?

Back 61

Load on line one. × friction

Load on line 2 × friction

(Cumulative of all lines)

Front 62

What is the recommended connection on all hosting slings to form an eye?

Back 62

Flemish eye plus pressed metal sleeve

Front 63

What is the preferred material for synthetic rope slings and why?

Back 63

Nylon, because of its strength

Front 64

What is the rule of thumb for a WLL of synthetic webbing slings?

Back 64

1" x 1Ply = 1600lbs WLL

Front 65

At a sling angle of 90°, approx how much of the load is on each sling?

Back 65

Half the load

Front 66

With a sling angle of 60°, approx how much of the load is on each sling?

Back 66

About 60%

Front 67

With a sling angle of 30°, how much of the load is on each sling?

Back 67

100% of the load is on each sling

Front 68

How many broken wires can you have in 1 lay before it needs to be taken out of service?

Back 68

6

Front 69

What is the formula for spacing wire rope clips?(Crosby clips)

Back 69

D×6

Front 70

When applied properly, how much strength can wire rope clips have?

Back 70

Approx 80% of the strength of the wire rope

Front 71

Name 3 uses of spreader bars

Back 71

Remove compressive forces

Support long loads that are difficult or susceptible to crushing

Used to reduce severe sling angles

Front 72

What are equalizer beams used for?(2 things)

Back 72

Equalize the load on slings

Or dual hoists on tandem lifts

Front 73

Fiber ropes are made up of what 3 parts?

Back 73

Fibres, yarns, and strands

Front 74

A knot or a bend in a rope reduces its strength by how much?

Back 74

50%

Front 75

A hitch in a rope reduces its strength by how much?

Back 75

25%

Front 76

A spice in a rope reduces its strength by how much?

Back 76

20%

Front 77

Which knot is used for tying 2 ropes of equal diameters together?

Back 77

Figure 8

Front 78

Which knot is used to join 2 ropes of different diameters?

Back 78

Sheet bend

Front 79

Name 4 rope configurations used to tie knots

Back 79

Turn, round turn, overhand and underhand loop.

Front 80

What knot would you use to tie a rope to a post or pipe?

Back 80

Clove hitch

Front 81

What knot would you use for hoisting/lowering planks/pipes?

Back 81

Timber hitch

Front 82

Which knot loosens as soon as there is no tension?

Back 82

Timber hitch

Front 83

Which knot would you use to join 2 ropes of large diameter?

Back 83

Carrick bend

Front 84

A wore rope is made up of what 3 parts?

Back 84

Wires, strands, and core

Front 85

Describe what a snubbed line is and when you should use it

Back 85

Wrapping a line around a post/beam 2 or more times to slow movement by increasing friction. Used to control a load moving downhill (acts like a break)

Front 86

When are taglines required by Oh&s?

Back 86

Any time the load has potential to hurt workers or damage equipment.

Front 87

What rope is preffered for a regular tagline?

Back 87

Nylon

Front 88

What rope is preffered for a tagline when there is an electrical hazard?

Back 88

Polypropylene

Front 89

What is the most common type of scaffold?

Back 89

Tube and clamp

Front 90

How much weight must a scaffold be able to support?

Back 90

4x its imposed load

Front 91

Scaffolds must have ____ for base support and _____ for lateral movement

Back 91

Mudsills, baseplates and screwjacks

Adequate bracing

Front 92

What is the ratio for the height of a rolling scaffold vs its base dimension?

Back 92

3:1

Front 93

How long can scaffold ladders be max?

Back 93

21'

Front 94

What is the minimum height if a toe board?

Back 94

140mm (5 1/2")

Front 95

How are wire rope strands sized?

Back 95

# of strands × # of wires in each strand

Front 96

Which wire rope construction consists of wires that are all the same size?

Back 96

Ordinary

Front 97

Which wire rope construction has a large wires on the inside and smaller wires on the outside?

Back 97

Warrington

Front 98

Which wire rope construction has large wires on the outside and small wires on the inside?

Back 98

Seale

Front 99

Which were rope construction has large and small wires throughout?

Back 99

Filler

Front 100

Which grade of wire rope is used for maximum tensile strength?

Back 100

120/130 special improved plow type 11

Front 101

Which wire rope grade is used for a higher ultimate load?

Back 101

115/125 (special improved plow type 1)

Front 102

Which grade of wire rope is most commonly used, mainly for its tensile strength and resistance to wear/fatigue?

Back 102

110/120 (improved plow)

Front 103

What grade of wire rope has excellent wear/fatigue strength, but lower tensile strength?

Back 103

100/110 (plow)

Front 104

What is the most important thing to know before starting a lift with a crane?

Back 104

The weight of the load