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16 Hour Rigging > Unit 5/6/9 > Flashcards

Unit 5/6/9 Flashcards

1
Q

During the inspection of hooks, which two conditions should you be especially careful to check for?

A

Cracks in the saddle section or at the neck

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2
Q

What action should you take if there is evidence of opening or distortion on a hook?

A

Destroy the hook

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3
Q

Generally speaking, the larger the _________ ________ of a hook, the more load it can hold.

A

Throat opening

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4
Q

Rings, links and swivels must be made of ________ ______ ______ to provide the highest degree of safety.

A

Forged alloy steel

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5
Q

Generally speaking, as the _____ ________ of rings, links and swivels increase, so does the minium safe working load.

A

Stock diameter

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6
Q

What are the two types of shackles most commonly used in rigging?

A

Anchor (bow type) and chain (D type)

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7
Q

What should you never use to replace a shackle pin with?

A

A bolt

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8
Q

Never use a shackle if the distance between the ____ is greater than the distance specified by the manufacturer.

A

Eyes

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9
Q

What is the maximum amount of wear allowed in the crown of a shackle or its pin before it must be destroyed?

A

10% of the original diameter

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10
Q

What is likely to happen if a shackle is pulled at an angle?

A

Reduced capacity/bending

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11
Q

In addition to being made of forged alloy steel, it is recommended that all eye bolts be equipped with ________ or _______.

A

Shoulders, collars

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12
Q

Shoulderless eye and ring bolts should only be used for this type of load.

A

Vertical

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13
Q

What can be used to ensure that the shoulders of eye and ring bolts are firmly in contact with the working surface?

A

Washers

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14
Q

Loads should always be applied to the _____ of the eye of an eye bolt.

A

Plane

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15
Q

What can you use to orientate the eye bolts when they can’t be kept in line with each other and stay tightened at the same time?

A

Thin shims or washers

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16
Q

TRUE or FALSE: Never insert the point of a hook in an eye bolt.

A

True

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17
Q

What should you use to connect a hook to an eye bolt?

A

Shackle

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18
Q

Never use a sling reeved through:

A

An eye bolt or a pair of eye bolts

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19
Q

Make sure that all hoisting hooks, except grab and sorting hooks, are equipped with this:

A

Safety catches

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20
Q

What situation can cause a hook’s throat to open?

A

Overloading

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21
Q

Should you use a hook without the rated working load stamped on it?

A

No

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22
Q

The rated working load of a hook only applies when the load is applied in the ______ of the hook.

A

Saddle

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23
Q

This choker hook is designed for attachment to the end of a sling.

A

Standard choker hook

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24
Q

This choker hook includes a spring insert that prevents it from sliding on the sling when not loaded.

A

Adjustable sliding choker hook

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25
This choker hook is designed for use with endless and conventional slings where two eyes are over the main hook.
Dual sliding choker hook
26
It is recommended that all hoisting hooks, as opposed to sling hooks, be equipped with these two objects:
Swivels and headache balls
27
To determine the size of a shackle, do you measure the diameter of the body or the pin?
The body
28
Cotter pins must be used with this type of shackle.
Round pin shackles
29
This is the minimum recommended depth for the tapped hole for screwed eye bolts/body bolts.
1-1/2x the bolt diameter
30
________ _____ are usually used to support long loads during lifts.
Spreader beams
31
_________ _____ are used the equalize the load in sling legs and to keep equal loads on dual hoist lines when making tandem lifts.
Equalizer beams
32
The capacity of beams with multiple attachment points depends on this:
The distance between the points
33
Slings require special attention because they are subjected to:
Severe wear, abrasion, impact loading, crushing, kinking and overloading.
34
What do seemingly insignificant changes in sling angle affect?
Loading
35
Sling angle should always be at least:
45 degrees
36
Sling angles of 30 degrees or less are considered to be:
Extremely hazardous
37
Use these to prevent sharp corners cutting into slings:
Blocking or protective pads
38
This hitch is formed by 2-4 single hitches and used for hoisting an object that has the necessary lifting lugs:
Bridle hitch
39
This hitch forms a noose in the rope that tightens as the load is lifted:
Single choker hitch
40
A single vertical hitch is a method of supporting a load by ___ leg(s) of the sling.
1
41
This hitch consist of two single basket hitches passed under the load:
Double basket hitch
42
These are endless ropes made from one strand of rope laid or twisted around intself on each successive loop
Endless/grommet slings
43
To make a braided sling, braid _______ small diameter ropes together.
6-8
44
When using a sling, this increases as the sling angle is decreased:
Load in each leg of the sling
45
It is the responsibility of management to ensure that workers are well trained in:
Safety and operating procedures
46
What are the 3 major areas of essential responsibilities for rigging procedures and precautions?
1. Planning 2. Supply + care of rigging equipment 3. Rigging operations
47
The single most important rigging precacution is to determine this before attempting to lift:
Weight of all loads
48
In a rigging operation, you must make ample __________ for unknown factors and determine the available _______ of the equipment used.
allowances, capacity
49
If you have cause to believe that any equipment or tackle is unsafe, don't use or operate until these 3 things have happened.
1. It's been reported to the supervisor. 2. Safe conditions have been assured. 3. Orders to proceed have been issued.
50
If the visibility of the riggers or hoist crews is impaired, _____ __________ of the operation must be exercised.
Strict supervision
51
You must exercise extreme caution when temperatures are below __ degrees Fahrenheit.
32
52
Safe working loads of hoisting equipment apply only to these loads
Freely-suspended loads on plumb hoist lines
53
Rapid ________ of suspended loads can cause collapse due to equipment stress.
Swinging
54
The rated loads of most hoisting equipment do not generally account for these items: Hook blocks, hooks, ______, equalizer beams, material handling equipment and other elements of lifitng tackle.
Slings
55
Never use _____ or damaged slings or hoist ropes.
Kinked
56
All slings should be identified with these:
Tags w/ rated capacities
57
Do not use a sling if the tag is not _______.
Legible/readable
58
When bending rope around a load, the length of the arc of contact should be:
At least equal to one rope lay (about 7 times the rope diameter)
59
TRUE or FALSE: It's okay leave wire rope lying on the ground if it's only for a short period of time.
False
60
TRUE or FALSE: Remove rope slings from beneath loads by dragging them underneath.
False
61
TRUE or FALSE: Keep all rope away from flame-cutting and electric welding operations.
True
62
TRUE or FALSE: Avoid rope making contact with solvents and chemicals.
True
63
TRUE or FALSE: Knotted and kinked slings are reinforced for an increased load capacity.
False
64
TRUE or FALSE: Never use discarded hoist rope as sling material.
True
65
TRUE or FALSE: Use single-leg wire rope slings with hand-spliced eyes to ensure safety.
False
66
TRUE or FALSE: Ensure that the sling angle is always greater than 30 degrees.
False (Ensure it's greater than 45)
67
TRUE or FALSE: It's safe to wrap a wire rope completely around a hook.
False
68
TRUE or FALSE: Avoid bending the eye section of wire rope slings around corners.
True
69
3 and 4-legged bridle slings are given the same ___ load as a 2-legged sling.
Safe
70
When using multi-legged slings to lift loads with one end that is much heavier than the other, the tension in the most _______ _____ leg is much more important than the total weight.
Heavily loaded
71
When using choker hitches, do not force the ___ down toward the load once tension is applied.
Eye
72
Before setting a suspended load in motion, you should ensure they are:
Securely slung and properly balanced
73
When personnel may be endangered by the rotation of a load, prevent _______ or ___________ ______ by using 1 or more guide ropes or tag lines.
Rotation, uncontrolled motion
74
Before being unhooked and unslung, loads must be safely _____ and properly ______.
Landed, blocked
75
TRUE or FALSE: The hoist rope must never be wrapped around the load.
True
76
TRUE or FALSE: Multiple-part lines may be twisted around each other for reinforcement.
False
77
TRUE or FALSE: The load line should be brought over the center of the load before the lift is started.
True
78
TRUE or FALSE: If there has been a slack rope condition, determine that the rope is properly seated on the drum and in the sheaves.
True
79
TRUE or FALSE: Keep hands out of pockets as the slack is being taken up.
True
80
TRUE or FALSE: Wear gloves when handling wire rope.
True
81
TRUE or FALSE: To avoid impact loading, lift the sling quickly to remove slack.
False
82
TRUE or FALSE: Never allow the load to be carried over the heads of any personnel.
True
83
TRUE or FALSE: Make temporary repairs to a sling as needed to assure safety.
False
84
TRUE or FALSE: Never point load a hook unless it is especially designed and rated for such use.
True
85
TRUE or FALSE: Remove or secure all loose pieces of material from the load before it is moved.
True
86
TRUE or FALSE: Make sure that the load is free before lifting and that all sling legs are taking load.
True
87
TRUE or FALSE: When using two or more slings on a load, ensure that all slings are made from different materials.
False.

16 Hour Rigging (2 decks)

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