Intro To Rigging Flashcards
More efficient version of a crab hook
Shortening Clutch
Are designed for angular pulls from 0 to 90 degrees from the Horizontal plane of the load
Swivel Eye bolts or hoist rings
Cord attached to the strands of an endless loop sling. which is used to determine if the sling has been stretched or overloaded
Tattle Tail
The main connection fitting for chain slings.
Master Link
a group of wires wound, or laid, around a center wire, or core.
Strands
The most common type of end-fitting hooks are ________ hooks
Eye Hook
What conditions would exists to require a shackle be taken out of use
Bends, cracks to shackle body, Incorrect shackle pin, Bent or broken shackle pin, Damaged threads, Missing or illegicle capacity and size markings.
Eye and Eye web slings come in 2 types, what are they
Standard and Twisted
Has loops on the same plane
Standard Eye and Eye sling
What are the three basic types of supporting cores for wire rope
Fiber core, independent wire rope cores, strand cores.
is a specialty shackle used in heavy lifting
Wide Body Shackle
before attempting to lift a load with a chain hoist, make sure of what
Load is properly balanced
identification tags for slings must include what on them
manufacturer’s name or trademark
Is a simple rope-and-pulley system used to lift loads
A Block and Tackle
When wear, scaraping, cracks, cuts, rust, an increase in throat opening, a twist in the hook, an eleongated hook, or a broken or missing latch are present
Slings with hook type endings need to be removed from service
Often are used for lifting high heat or in rugged conditions
Chain Slings
Are endless and made in a continuous circle out of Polyester yarn
Round Slings
how many types of Hooks are there
5
Used for Steel Chain Slings
Grab Hook
When red-core stings are exposed it means the sling has sustained to much damage to be used. Therefore it should not be used
Warning yarns
If the identification tag on a synthetic sling is missing or illegible, the sling must be what
removed from service immediately
Missing, Cracks, Heat Damage, Stretched link damage, Bent Links, Twisted Links, Evidence of replacement links, Excessive rust or link bearings, Scraping or abrasion
Rejection Criteria for Alloy Steel Slings Inspection
What are the 3 types of web slings
Grommet or endless, Regular eye and eye, Round
A lifting clamp is most likely to be used to move loads such as what
Steel Plate
The size of the shackle is deteremine by what
The diameter of the shackle body
Synthetic slings must be inspected when
Before every use
Are installed onto the sling when it is made
Sliding Choker Hook
Manufacturers name or trademark, Rate capacity in a vertical hitch, Diameter of wire rope, Manufacturer’s code or stock number of sling
Wire rope sling requirements
A type of rigging equiptment that uses a pulley system to provide a mechanical advantage for lifting a load is called what
Hoist
Are softer and wider than chain or wire rope slings, therefore will not sctach or damage delicate surfaces. They also do not rust or corrode
Web sling
Are light weight and easy to handle, they mold to the shape of the load, they absorb shock, and are less likely to twist. Should not be exposed to temp above 180 degrees
Most synthetic web slings
The size of a shackle is determined by the diameter of its what
Body
A piece of rigging hardware used to couple the end of a wire rope to eye fittings, hooks, or other connections is called what
Shackle
A device that applies a mechanical force for lifting or lowering a load
Hoists
Are lighter than chain slings can withstand abuse, and are easier to handle.
Wire rope sling
is made so that it is less likely that the wires and the core will be damaged when the rope bends around sleaves or loads
Wire rope
A Missing Tag, Abrasion or worn jacket, A cut in outer jacket, A tear that exposes yarn, A puncture, Broken or worn stitching, A knot that can not be taken out by hand, A snag, Crushing, Damage from overload, Chemical damage, Heat Damage, UV Damage, Loss of Flexability.
Rejection criteria for a Synthetic sling Inspection
Chain hoists are able to lift heavy loads by utilizing what
Gear System
What is rigging
The planned movement of materials and equiptment from one location to another using slings, hoists, or other types of equiptment
A hitch configuration that allows slings to be connected to the same load without using a spreader beam is called what
Bridel Hitch
To make the Emergency Stop signal that is used by riggers, extend both arms how
horizontally with palms down and quickly move both arms back and forth
to use a hand chain hoist, rigger suspends the hoist above the load to be lifted, using either the suspension hook or the trolley mount
Hand Chain Hoist
Rope that runs from the load to the ground. Rigger holds on to tag lines to keep the load from swinging or spinning during the lift
Tag Line
Is an item of rigging hardware with threaded shank
Eye Bolt
Overhead cranes and mobile cranes
Two types of cranes
What type of loads can synthetic slings lift
Easily damaged loads
Made by wrapping the sling completely around the load, and then wrapping the choke end arounf again and connecting to the running end like a conventional choker hitch
Double Wrap Choker Hitch
Have eye at right angles to the main portion of the sling
Twisted Eye and Eye sling
Eye bolts made for overhead lifting
Drop or hammered forged steel
Have both a friction type holding brake and a ratchet and pawl load control brake
Ratchet Lever Hoist
Manual, electric, or pneumatic geared mechanical device that uses chain for lifting
Chain Hoist
Versitile and can be used to lift a variety of loads
basket Hitch
Used to lift a load straight up
Single Choker Hitch
The type of wire rope core that is susceptible to heat damage at relatively low temperatures is called what?
Fiber core
If a clamp shows any of the following signs: Cracks, Abrasions, Deformastions, excessive rust or corrosion, excessive wear, heat damage, Loose or damaged screws, or worn springs
Clamp must be removed from service
what type of eye bolt is made for vertical pulls only
Unshouldered Eye bolts
Used when a load has no attachment points or when the attachement points are not pratical for lifting
Choker Hitch
Coupling devise used in an appropriate lifting apparatus to connect the rope to eye fittings, hooks, or orther connectors.
Shackle
Manufacturers name or trademark, Manufacturer’s grade of steel, Link size diameter, Rate load and the angle on which the rating is based, sling reach, Number of sling legs
Alloy steel chain sling requirements
Position the point of the hook perpendicular to the eye.
Round Reverse Eye Hook
Alloy steel chains commonly used for overhead lifting are marked with what?
8, 80, 800 or A
A device used to move loads such as steel plates or concrete panels without the use of slings.
Lifting clamps
A grooved pulley-wheel for changing the direction of a rope’s pull. Often found on a crane
Sheaves
Consists of two or more vertical hitches attached to the same hook, master link or bull ring
Bridal hitch
How often must a shackle be inspected
Before each use
What are two types of synthetic slings
Web Sling and Round Sling
A configuration using two or more slings to connect a load to a single hoist hook
Bridle
Slings are commonly made out of what material
synthetic material, alloy steel , and wire rope
When a load has no attachment points or when the attachment points are not practical for lifting, it is best to use what
Chocker Hitch
Weight Load Limit
WLL
The safe and efficient practice of load manipulation, using proper communication and handling techniques
Load Control Brake
Always use PPE, Make sure load is properly balanced, keep gears, chains and ropes clean, lubricate gears, Never perform a lift of any size
Hoist Safety and Maintenance
There are 3 types pf Hitches
vertical, choker, and basket
Broken WIres, Kinks, Birdcaging, unstanding, crushing, Corrosion or rust, Heat Damage, Integrity of end connections
Rejection Criteria for Wire Rope Inspection
Must be done regardless of any existing markings or tags that relate to the previous inspection
Sling Inspection
Signal is made by extending arms horizontally with palms down, and then quickly moving the arms back and forth by repeatedly extending and retracking them
The Emergency Stop Signal
An alloy steel chain sling must be removed from service if there is evidence of what
Replacement links have been used to repair the chain
An item of rigging hardware used to attach a sling to a load
Rigging Hook
What must all shackles have on them
A stamp that is clearly visible, showing the manufactuer’s trandmark, the size of the shackle and the rated capacity of the shackle.
The strain or tension applied on the rigging by the weight of the suspended load
Load Stress
What are the two basic shackle types
Anchor Shackle and Chain Shackle
The maximun load weight a sling or piece of hardware or equiptment can hold or lift
Rate of capacity
Manufacturers name or trademark, Manufactuers code or stock number, Rate of capacity, Type of synthetic material used in the manufacture of the sling
Synthetic Sling Tagging requirements
Lifting clamps must be placed to maintain what
Load balance
What kind of shackle is most commonly used in the industry
The Screw pin shackle
