Terminology
The maximum tension that a rigging component may be subjected to while maintaining an appropriate margin of safety
Rated load
The type of cranes and hoists permanently installed indoors
Industrial
A flat, narrow synthetic sling is called this
Web
The designation for the direction in which rope strands are twisted
Lay
A plain, rigid loop attached to the end of a sling or hung on a crane hook that helps connect multiple rigging components together
Link
Three additional terms for rated load
Load Rating, Load Capacity, Weight Rating, Weight Capacity, Working Load Limit, Safe Working Load
This type of lift requires a written plan
Complex
A chains impact absorption is this much stronger than a wire rope
3 times
The safety factor of fiber rope
5
Usually tied to a load in order to use light force to orientate it
Tag Line
The point at which a component is expected to break
Breaking Strength
To use voice signals during a lift, you must have this
A device with a dedicated channel
The temperature at which a permanent reduction can happen to a chain
500 degrees Fahrenheit
The strongest type of rope lay, typically
Regular Lay
This is placed under a load when it is set down to make moving easier
Cribbing
Breaking strength is also referred to as
Ultimate Strength
The two main OSHA sections that apply to the general industry and construction
Sections 29 CFR 1910 and 1926
The color of the warning yarns in a synthetic sling
Red
The twine binding on the end of a rope
Whipping
Hoist hooks are designed to do this during an overload
Deform / Open before breaking
The ratio of a components breaking strength to its rated load
Safety Factor / Design Factor
A written and practical skills test must be passed in order to be considered this
Certified
The angle formed between the vertical part of the sling and the part of the sling surrounding the load
Choke Angle
A ropes tendency to untwist when under load
Cabling
This prevents the side loading that might occur if the eyebolts were improperly aligned or if the attachment hardware were to snag or bind on fixed eyebolts
Swivel Hoist Ring