Webinar #132 - Rigging Demo W/ Craig Bachman

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#132REC

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What are the two primary types of rigging? *

1 point

Heavy and light

Fast and slow

Static and dynamic

Natural and artificial

When planning how to remove a tree, we typically consider our work options in which order?

1 point

Rig from above, rig from below, haul

Fell, free fall, rig from above, rig from below

Free fall, fell, rig from above, rig from below

Rig from above, free fall, dismantle

Clear selection

The most important characteristics to consider when selecting a rigging rope include:

1 point

Rating, elongation and abrasion resistence

Fiber type and braid pattern

Construction and color

Manufacturer, fiber type and rating

Clear selection

Which rope construction is generally considered to have the highest abrasion resistance?

1 point

Double braid

Kernmantle

Three strand

They are all the same

Clear selection

Which of the following impact a rigging rope's ability to absorb energy?

1 point

Type of material (fiber)

Construction

Diameter

All of them

Clear selection

A 5/8" diameter rigging rope is only slightly larger (0.125") compared a 1/2" diameter rope. Assuming the same construction, what explains the dramatically higher WLL rating of the 5/8" rope?

1 point

The ratings are pretty much the same

A bigger rope is always stronger, regardless of the construction

A small change in diameter significantly increases the "cross sectional area" and volume of fiber in the rope

Ropes are confusing

Clear selection

In a static rigging scenario where LIFTING may be required, which rope characteristic has the greatest impact on efficiency?

1 point

MBS

Elongation %

Working load limit

Length

Clear selection

Installing a redirect at the base of the tree is a great way to...

1 point

Move the lowering device away from the tree

Increase overall safety on the job

Easier to add mechanical advantage (if needed)

All of the above

Clear selection

If you observe someone operating a lowering device and they are leaning back and gripping the rope tightly (the "water skiing" position), what does this indicate?

1 point

They are concerned about having too little friction (e.g. too few wraps) for the piece

They are nervous of their ability to handle the piece

They may have difficulty "letting it run" in a dynamic rigging scenario

All of the above

Clear selection

Gloves are important PPE for rope handling. Which type of gloves are particularly important in dynamic rigging applications?

1 point

Latex coated work gloves

Leather gloves

Thick insulated gloves

Gloves provide no benefit

Clear selection

Which of the following could be a hazard when installing or operating a portawrap-style lowering device? (mark all that apply)

1 point

Nails or other metal objects protruding from the trunk

Unstable deadwood above the device location

Uneven terrain and tripping hazards

Significant trunk flare

Why is working load limit (WLL) used to describe a rope's load handling capabilities?

1 point

It represents the maximum force the rope is designed to handle in normal operations without fear of failure

It represents the heaviest piece that can be rigged on that rope

It is a smaller number and easier to understand by new tree workers

None of the above

Clear selection

Which of the following knots is best for a "mid-line" rigging attachment when when working end (tail) will be used as a tag line during lowering?

1 point

Butterfly

Overhand on a bight

Sheet bend

Figure 8

Clear selection

A clove hitch and a cow hitch are both tied with two "turns" around an object. What is one advantage of the cow hitch?

1 point

More difficult to tie

Requires significantly less rope

Easier to unite after heavy loading

Cows are bigger than cloves

Clear selection

Which of the following connecting links is most suitable for rigging applications?

1 point

Quick link

Aluminum carabiner

Steel carabiner

Accessory carabiner

Clear selection

Which of the following knots is most appropriate for attaching a large diameter rigging line to a climber's rope?

1 point

Figure 8

Double fisherman

Sheet bend

All of the above

Clear selection

A properly configured rigging system ALWAYS has the lowest amount of friction possible.

1 point

True

False

Clear selection

Which of the following is an advantage of adding friction "in the tree" rather than at the base? (mark all that apply)

1 point

Reduces force at the primary rigging point

Enables the climber to assist in lowering

Always increases the amount of rope

Can reduce the number of ground crew needed

When placing the rigging rope into portawrap-style lowering device, the bight must pass through the retention loop and over the...

1 point

The sling

Retention pin

Both cleat pins

The tree

Clear selection

When "counting wraps" on a portawrap-style lowering device, each time the rope passes UNDER the barrel, you have completed...

1 point

a FULL wrap

a HALF wrap

Clear selection

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