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HCARP1 > E2 - Use Rigging and Hoisting Equipment > Flashcards

E2 - Use Rigging and Hoisting Equipment Flashcards

1
Q

What kind of rope has the best electrical insulating properties when dry?

A

Prolypropylene

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2
Q

When loaded to the breaking point, how much will Nylon rope stretch to?

A

40% It’s original length.

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3
Q

What is the purpose of whipping?

A

It prevents the ends of a rope from fraying.

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4
Q

The maximum load imposed on a rope should never exceed how much?

A

1 / 9 it’s breaking strength.

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5
Q

Sharp knots and bends can reduce the strength of a rope by up to how much?

A

50 %

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6
Q

What is the Working Load Limit?

A

The maximum load that a rigging component may carry and meet the safety factors set by WorkSafeBC. The minimum safety factor for rigging used to support working is 10.

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7
Q

What is the breaking strength of a rope?

A

The breaking strength is the minimum force necessary to break the rope, it is measured in Newtons or pounds.

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8
Q

What must you use when attaching a small diameter object to a rope?

A

Use a thimble to protect the eye of the rope.

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9
Q

What is the purpose of whipping a rope?

A

The purpose of whipping a rope is to prevent the strands from unraveling. It helps to prevent the strands from carrying an uneven amount of load.

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10
Q

Should you join ropes for overhead lifting?

A

No.

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11
Q

The bowline loop is used when?

A

The bowline loop is used when a slip-proof loop is needed.

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12
Q

The reef knot or square knot is for what purpose?

A

The reef knot is used to fasten two ropes of equal diameter together.

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13
Q

The sheet bend knot is used for what purpose?

A

The sheet bend knot is used to attach two ropes of unequal diameter together.

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14
Q

What is the purpose of the clove hitch?

A

The clove hitch is used to secure a rope to a fixed object, such as a post.

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15
Q

What is the purpose of a timber hitch?

A

The timber hitch is used to secure a rope to a plank, timber, post or pipe when that object is to be lifted into an upright position.

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16
Q

What is the trucker’s knot useful for?

A

The trucker’s knot is very useful for tying down a load.

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17
Q

What is the purpose of a figure eight knot?

A

The figure eight know is used to make a stopper at the end of a rope.

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18
Q

The knot which multiplies tension you apply to the rope is which?

A

The trucker’s knot.

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19
Q

What is the purpose of a turn buckle?

A

The purpose of a turn buckle is to adjust the lengths of slings so that loads can be level when lifted upwards.

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20
Q

The three kinds of ends that are available for a turn buckle are what?

A

Eye, jaw and hook.

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21
Q

When the end of a turnbuckle is prone to rotation due to vibration, what step needs to be taken?

A

The ends need to be wired to the sleeve with a lock wire.

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22
Q

Shoulderless eye bolts are great for overhead lifting. True or false.

A

False. Never use shoulderless eye bolts in overhead lifting, as force applied from the side at any angle could break the stem of the bolt.

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23
Q

If a should type eye bolt is pulled at 50 degrees, what will happen?

A

The eye bolt will either break or bend.

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24
Q

What is a purpose of a shackle?

A

A shackle is used to connect a sling to a load. They are used whenever two or more ropes are to be placed over a hook.

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25
Q

What is the purpose of a cable clip?

A

A cable clip is used to fasten the end of a wire rope back onto its standing part to form a loop.

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26
Q

Slip and grab hooks are generally used for what purpose?

A

Slip and grab hooks are attached to the ends of chains to pick up or pull a load.

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27
Q

What is the purpose of a sorting hook?

A

They are primarily used at the end of slips for picking up steel plate and other steel structural shapes.

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28
Q

What should be used to protect chains from the stress of twisting?

A

All hosting chains should have a swivel to protect them from the stress of twisting.

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29
Q

What is a choker hook?

A

A choker hook is a fitting at the end of a sling that protects the rope that the hook connects to from sharp bends.

30
Q

This item is used to connect the loads to the lifting device.

A

What is a sling?

31
Q

This kind of sling is softer and wider than most other slings, better protecting the load against marring or scratching.

A

What is a synthetic web sling?

32
Q

Why use a metal mesh sling opposed to a synthetic web sling?

A

Loads that may be too hot or abrasive for synthetic webbings yet require the wide bearing surface of a web belt.

33
Q

What should you do if a sling is worn and cut?

A

Tag it, so that it will not be used by another worker and notify your supervisor about your decision.

34
Q

What is a purpose of a bridle hitch?

A

When loads have a suitable attachment, it is used to keep the load stable, as long as the attachment points are above the load’s center of gravity.

35
Q

When several ropes are to be attached to a single hook make the connection to the hook using:

A

A shackle.

36
Q

20%

A

How much the installed cable clips will reduce the breaking strength of a wire rope by.

37
Q

What is the main difference between a crane and a hoist?

A

A crane can lift and move objects, while a hoist can lift objects up and down only.

38
Q

Tower cranes are most common on what kind of job site?

A

High-Rise.

39
Q

Normally operated from ground level, they are designed to self-assemble by unfolding and/or telescoping up.

A

Self-erecting cranes.

40
Q

They can be driven on roads, some of them are designed for rough terrain off-road travel and have large wheels and steering capability in both front and rear axles.

A

What is a mobile crane?

41
Q

Used as a deliver truck to off-load materials such as lifts of lumber and sheet goods, trusses and gypsum board.

A

What is a boom truck?

42
Q

A frame structure, that runs on a trolley on rails. They are mainly used in factories.

A

What is an overhead gantry crane?

43
Q

Much like a forklift, has a telescopic boom with an articulating point. Although pallet forks are most common, can be fitted with many other types of attachments including buckets and winches.

A

What is a telehandler?

44
Q

A type of roofing hoist designed to lift materials up a ladder. Ladder heights are normally about 28 feet and 44 feet. Lifting capacity commonly ranges between 200 and 500 lb. The lifting is cable powered by a small gasoline engine.

A

What is a power ladder?

45
Q

Used either by a wire rope or chain, worked by moving a ratchet lever.

A

What is a come-along?

46
Q

This kind of pulling device is equipped with wire rope, and especially designed for a certain brand of wire rope.

A

Tirfor jack.

47
Q

Tower mast, jib operation arm and counter jib.

A

What are the three main parts of a tower crane?

48
Q

A crane or hoist must only be operated by a qualified person who has been instructed to operate the equipment.

A

What does WorkSafeBC require in regards to hoisting operations.

49
Q

When a power line is over 250,000 Volts, how far should you stay away?

A

20 feet or 6 m.

50
Q

Where must you position the lifting hook of a sling when lifting a heavy object?

A

The position of the hook should be directly above the center of gravity.

51
Q

When using a double basket sling, where must you make sure the center of gravity is located?

A

When using a double basket sling, you must make sure the center of gravity is between both the slings.

52
Q

It is used to control a load, allowing you to control the load from a safe distance, should the load drop or shift, you will be out of danger.

A

What is a tag line?

53
Q

What is the preferred type of rope for a tag line, in order to not conduct electricity?

A

Polypropylene is the preferred tagline for a tag line.

54
Q

What would be best used when you need to maneuver trusses onto a structure?

A

Using a spreader bar and two tag lines.

55
Q

What does the term dog everything mean?

A

The crane operator must lock all the crane functions at this signal.

56
Q

When are construction material hoists used?

A

Construction material hoists are used on much larger construction projects where the amount of material to be moved is warranted by the installation of the hoist. A registered professional engineer must inspect the material hoists prior to the first lift of the materials.

57
Q

When the use of audible or visual signals is hazardous or impractical, what must be used instead?

A

Two-way radio or other audio or video systems must be used.

58
Q

What must be done if a load, being lifted, accidentally comes in contact with a boom of a crane?

A

The crane must be inspected.

59
Q

What is the minimum clearance while working around a 100,000 volt power line?

A

10 feet.

60
Q

What is a way to describe the center of gravity?

A

The point of balance.

61
Q

What kind of rope conducts electricity when it gets wet?

A

Nylon.

62
Q

Where should a tagline be attached to a long load?

A

Near the end of a load.

63
Q

What should be done with slings prior to lifting loose bundles of round stock?

A

They should be double wrapped.

64
Q

Should you ever wrap a sling on a lifting hook to prevent movement?

A

No, this will weaken the sling considerably and may even render it useless.

65
Q

When a structural load attached to a sling has sharp edges that can damage the sling, what should be done?

A

To prevent damaging the slings, always provide padding between the slings and the sharp corners of the load.

66
Q

What type of gloves are not considered safe for handling materials?

A

Gauntlet type gloves.

67
Q

What do you need to use when rigging loose bundles of round stock?

A

Double-wrapped basket hitches.

68
Q

When lifting with a sling, you must make sure that the sling is long enough so that the angle formed by the sling from the horizontal is always greater than?

A

60 degrees - the minimum.

69
Q

Tirfor jacks and come-along are used to straight and lift walls, True or False?

A

True

70
Q

How should an inspection log be maintained for New rigging components?

A

Each year, they should be inspected against the original measurements for wear and distortion. An inspection log must be maintained.

HCARP1 (17 decks)

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