E2 - Use Rigging and Hoisting Equipment

Question 1

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

Answer 1

Prolypropylene

Question 2

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

Answer 2

40% It’s original length.

Question 3

What is the purpose of whipping?

Answer 3

It prevents the ends of a rope from fraying.

Question 4

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

Answer 4

1 / 9 it’s breaking strength.

Question 5

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

Answer 5

50 %

Question 6

What is the Working Load Limit?

Answer 6

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.

Question 7

What is the breaking strength of a rope?

Answer 7

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

Question 8

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

Answer 8

Use a thimble to protect the eye of the rope.

Question 9

What is the purpose of whipping a rope?

Answer 9

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.

Question 10

Should you join ropes for overhead lifting?

Answer 10

No.

Question 11

The bowline loop is used when?

Answer 11

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

Question 12

The reef knot or square knot is for what purpose?

Answer 12

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

Question 13

The sheet bend knot is used for what purpose?

Answer 13

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

Question 14

What is the purpose of the clove hitch?

Answer 14

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

Question 15

What is the purpose of a timber hitch?

Answer 15

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.

Question 16

What is the trucker’s knot useful for?

Answer 16

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

Question 17

What is the purpose of a figure eight knot?

Answer 17

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

Question 18

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

Answer 18

The trucker’s knot.

Question 19

What is the purpose of a turn buckle?

Answer 19

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

Question 20

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

Answer 20

Eye, jaw and hook.

Question 21

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

Answer 21

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

Question 22

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

Answer 22

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.

Question 23

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

Answer 23

The eye bolt will either break or bend.

Question 24

What is a purpose of a shackle?

Answer 24

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.

Question 25

What is the purpose of a cable clip?

Answer 25

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

Question 26

Slip and grab hooks are generally used for what purpose?

Answer 26

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

Question 27

What is the purpose of a sorting hook?

Answer 27

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

Question 28

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

Answer 28

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

Question 29

What is a choker hook?

Answer 29

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

Question 30

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

Answer 30

What is a sling?

Question 31

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

Answer 31

What is a synthetic web sling?

Question 32

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

Answer 32

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

Question 33

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

Answer 33

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

Question 34

What is a purpose of a bridle hitch?

Answer 34

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.

Question 35

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

Answer 35

A shackle.

Question 36

20%

Answer 36

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

Question 37

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

Answer 37

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

Question 38

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

Answer 38

High-Rise.

Question 39

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

Answer 39

Self-erecting cranes.

Question 40

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.

Answer 40

What is a mobile crane?

Question 41

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

Answer 41

What is a boom truck?

Question 42

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

Answer 42

What is an overhead gantry crane?

Question 43

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.

Answer 43

What is a telehandler?

Question 44

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.

Answer 44

What is a power ladder?

Question 45

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

Answer 45

What is a come-along?

Question 46

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

Answer 46

Tirfor jack.

Question 47

Tower mast, jib operation arm and counter jib.

Answer 47

What are the three main parts of a tower crane?

Question 48

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

Answer 48

What does WorkSafeBC require in regards to hoisting operations.

Question 49

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

Answer 49

20 feet or 6 m.

Question 50

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

Answer 50

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

Question 51

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

Answer 51

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

Question 52

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.

Answer 52

What is a tag line?

Question 53

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

Answer 53

Polypropylene is the preferred tagline for a tag line.

Question 54

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

Answer 54

Using a spreader bar and two tag lines.

Question 55

What does the term dog everything mean?

Answer 55

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

Question 56

When are construction material hoists used?

Answer 56

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.

Question 57

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

Answer 57

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

Question 58

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

Answer 58

The crane must be inspected.

Question 59

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

Answer 59

10 feet.

Question 60

What is a way to describe the center of gravity?

Answer 60

The point of balance.

Question 61

What kind of rope conducts electricity when it gets wet?

Answer 61

Nylon.

Question 62

Where should a tagline be attached to a long load?

Answer 62

Near the end of a load.

Question 63

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

Answer 63

They should be double wrapped.

Question 64

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

Answer 64

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

Question 65

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

Answer 65

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

Question 66

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

Answer 66

Gauntlet type gloves.

Question 67

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

Answer 67

Double-wrapped basket hitches.

Question 68

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?

Answer 68

60 degrees - the minimum.

Question 69

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

Answer 69

True

Question 70

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

Answer 70

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