RIG CH.5 Flashcards
What is the appeal of slings?
Strong, durable, inexpensive, and tagged with weight ratings.
What are the three configurations for slings?
vertical, choke, and basket
How does the choker configuration affect the weight rating?
Cuts weight rating in half compared to vertical.
How does the basket configuration affect the weight rating?
Doubles the weight rating compared to vertical.
When should you use a choking configuration?
Only when a basket is not possible, as choking significantly reduces sling strength.
What is it called when two or more slings are used in a vertical configuration?
Bridle type configuration
What sling configuration is used to rig from the lifting line to each corner of a transformer or other piece of equipment, using multiple slings?
Vertical or bridle
What sling configuration is used to bite down and hold in place?
choker
What sling configuration is used most commonly to support poles from a boom for framing, the pole can be rotated in this configuration?
Basket
What is another name for synthetic slings?
web slings
Name what is being described. Usually leather, sewn to the sling itself, provides the user with the WLL in various configurations.
Name Tag
What do you do with a sling that has missing or illegible name tags?
Must be removed from service immediately.
T or F: There is only one type of sling used in the power delivery industry.
False, there are various types of slings used and several can and should be viewed on pages 72-74.
Describe the basic care of synthetic slings.
Inspect before each use, read name tag, avoid ultraviolet light, heat, and sharp edges.
What type of sling is popular with lifting very heavy loads?
wire rope slings
How can you tell if a chain is proof tested?
stamp on each link
What must chains used for lifting, rigging, or hoisting must be?
Minimum of Grade 80 Alloy Chain
What are chain slings most commonly used for?
setting poles
Chain slings are normally designated as type CO or CP.
What does the C stand for? O? P?
C = Choker, O = oblong master link, P = pear-shaped master link
What are material shackles used for?
attaching of joining hardware
T or F: Material shackles can be used for rigging?
False
T or F: Rigging shackles can be loaded at any angle.
False, never subject a rigging shackle to side strain.
What is the shackle orientation for a choker setup?
Pin on the standing end, shackle body on running end
