Rigging Flashcards

1
Q

Duraplex is increasing in popularity when doing what?

A

Use with handlines and smaller rigging scenarios

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2
Q

Tenex is increasing in popularity when?

A

When pulling and stringing and climbing and rigging

Heavy load

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3
Q

Synthetic rope must be removed when

A

Abnormal wear
Powdered fiber between strands
Broke or cut fiber
Variation in the size around a strand

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4
Q

What wire rope is considered to be the strongest

A

Improved plow steel

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5
Q

What are the limitations of synthetic rope?

A

Melt if subjected to heat

Damaged by sharp edges or abrasion

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6
Q

What are the basic wire ropes

A

Mild plow steel wire rope
Plow steel wire rope
Improved plow steel wire rope

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7
Q

What rope do you use when waking around energized conductors

A

Synthetic rope and slings

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8
Q

Proper care of rope should include

A

Clean and dry when stored
Hung in neat coils devoid of kinks or twists
Splinters, thorns, burrs, sand, and gravel should be removed at every opportunity
Avoid contact with chemicals

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9
Q

Catalog breaking strength (cbs) is what

A

The average force in pounds needed to break a rope

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10
Q

What are examples of dynamic loading?

A

Shock loading
Excessive use
Exposure to high temperatures
Extends period under load

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11
Q

Dynamic loading occurs when

A

Ropes are subject to severe exposure conditions

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12
Q

What is design factor

A

A arbitrary number (usually 5 for ropes)

Used for calculating working load limit

Cvs is divided design factor to determine WLL

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13
Q

Working load limit is what

A

The maximum load that should be applied to a rope

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14
Q

Explain why it helps to begin a splice with a tracer strand

A

So you know where to start

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15
Q

Variation of a square knot

A

Granny
Thief
Grief

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16
Q

What’s the three most common ropes

A

Natural fiber
Synthetic fiber
Wire rope

17
Q

What rope has limitations because it is subject to rot

A

Manila rope

18
Q

What rope should be avoided for and rigging applications

A

Manila rope

19
Q

OSHA requires natural fiber ropes to be immediately removed from service if:

A

Abnormal wear
Powdered fiber between strands
Broken or cut fibers
Variation in the size or rounded of strands

20
Q

What strength does synthetic fiber rope have

A
High weight in strength rati
Absorbs very little moisture 
Does not stiffen when wet
Good dialectic properties when clean
Is resistant to damage caused by water and mildew