Rig Flashcards
According to OSHA, slings used in a basket shall have the loads____ to prevent slippage.
Balanced
When slings encounter sharp edges on loads to be lifted, riggers shall ensure that slings are:
Protected or Padded
According to ASME B30.9, what is the maximum width of an object that can be placed in the eye of a wire rope along?
1/2 the length
According to OSHA, each day before being used, the sling and all fastenings and attachments shall be inspected for damage or defects by a:
Competent person
According to OSHA, alloy steel chain, wire rope, metal mesh and synthetic web slings shall not be used with loads in excess of their____
Rated Capacity
According to OSHA, how many randomly distributed broken wires in one rope lay must there be to remove the wire rope sling from service?
10 (keyword: wire rope sling)
According to OSHA, how many broken wires in one strand in one rope lay on a wire rope sling must there be to remove the rope from service?
5 (keyword: wire rope sling)
Which knot is best for tying a tagline to the eye of a sling?
Bowline (keyword: tagline)
According to ASME, quadruple sling bridle ratings are the same as:
Triple Sling Bridle Ratings
According to ASME B30.10, markings shall be forged, cast or die stamped on what area of the hook?
Non-Wearing
Is an overhead hoist permitted to continue operations when its wire rope reaches any one of the removal criteria’s?
Yes, until the end of the shift with approval of a qualified person.
According to ASME B30.10, any hook distortion causing an increase in throat opening of 5% or exceeding 1/4 inch, shall be:
Replaced (0% twist, 5% or more 1/4” throat opening, and 10% wear rule)
According to ASME B30.10, any hook having wear exceeding ____ shall be removed from service.
10% (0-5-10 Rule)
According to OSHA, how often shall rigging equipment used in material handling be inspected?
Prior to use each shift
According to OSHA, natural and synthetic fiber rope slings shall be removed from service when ____
Powdered fiber between strands and present
When correctly installing U-Bolt type wire rope clips, the U-Bolt portion of the clip must be installed on which end of the wire rope?
The dead or short end
Accord to ASME B30.26, compression hardware shall be removed from service if which of the following are visible?
Missing or Illegible identification, excessive pitting or corrosion, bent twisted, distorted, stretched, or cracked components
According to ASME B30.9, what minimum grade alloy steel chain shall be used for hoisting chain?
80 (alloy chain can also be 100)
According to ASME, when the horizontal load angle decreases the stress ____
Increases
According to B30.26, a visual inspection of rigging hardware used in material handling shall be performed:
Each shift prior to use
According to ASME B30.9, the frequency of periodic inspections shall not exceed:
1 year
According to ASME B30.16, the three general classifications for inspections are:
Pre-Operation, Frequent, and Periodic
According to ASME B30.9, what is the maximum width of an object that can be placed in the eye of a synthetic web sling?
1/3 length
According to OSHA, what are the conditions listed will prohibit the use of synthetic slings?
Acid and caustic vapors, over 194 degrees, not around salt water or rust, lifting personal, and don’t leave in the sun.
According to ASME B30.9, the design factor for Synthetic, Metal Mesh, and Wire Rope slings shall be a minimum of?
5 (lighter weight 5; heavier weight 4)
According to ASME B30.9, who should maintain the identification tags on the wire rope?
User
When using wire rope slings, what is the approximate percentage of strength for a choker, straight-line, and basket hitch respectively?
75%, 100%, 200% (key word respectively)
According to ASME B30.26, each new shackle body shall be marked to show?
Manufacture’s name, size, and rated capacity
According to ASME B30.26, which of the following is Not required for each new shackle pin to be marked showing?
Size
According to ASME B30.26, multiple slings should be attached to the shackle where?
Bow (not the pin)
According to ASME B30.26, the screw pin of the shackle shall be?
Fully engaged
Where should the eye of the web sling be on the shackle when using the choke with the shackle hitch?
The pin (not the bow)
According to ASME B30.26, non shouldered eyebolts shall only be used when the angle of loading is:
0-5 degrees (no side loading, just straight line lifting)
According to ASME B30.26, swivel hoist rings shall be marked to show what?
Manufacturer, Torque Value, and Rated Capacity
According to ASME B30.9, what is the minimum design factor for alloy steel chain slings?
4 (4 for heavy, 5 for light)
According to OSHA, metal mesh sling handles and metal fabric must have the same:
Rated Capacity
According to ASME B30.26, each new link, ring, and swivel shall be marked by the manufacturer to show what?
Manufacturer, Size, and Rated Capacity
According to ASME B30.23, which type of material should not be used for suspension systems?
Synthetic
What are the proper ways to spool a wire rope from a reel to a drum?
Top to Top or Bottom to Bottom
According to ASME B30.26, multiple slings in the body of a shackle shall not exceed what included angle?
120 degrees
Before hoisting employees on a platform and after any repair or modification, the platform rigging should be proof tested using what percent of the platform’s capacity?
125%
According to OSHA, when using slings in a basket hitch, what is important to know to prevent slippage?
The load must be balanced
According to OSHA 1926.1431, rigging hardware must be capable of supporting at least ____ times the maximum intended load applied or transmitted to that component.
5 times out of
When rigging loose pipe or tubing, which of the following hitches would provide the most contact between the sling and load?
Double wrap chokers
What is the angle between the top of the load and the sling leg referred to in sling load charts?
Horizontal Angle
What’s not labeled on a lifting beam?
Length of beam (the beam should read: Manufacturer, Weight, and Rated Capacity)
When using a Synthetic web sling in a choker hitch, what is its percent rating?
80%
What is the design factor for shackles rated over 150 tons, Rigging Blocks, and Load Indicating Devices?
4 (4 for heavy, 5 for light)
When jacking a load, what do you place between the jack and the load?
A piece of hardwood
According to ASME B30.26, what are the different elements for removal of service for shackles?
-Missing or Illegible Manufacturer
- Incomplete pin engagement (look for gap between the body and pin head)
- Excessive Thread Damage
- Throat opening up to 5% but not more than 1/4”.
(Start from the top to bottom of shackle)
When removing a load binder that is under tension, what method would you use to release it?
Use a pry bar
According to OSHA, rigging equipment must be visually inspected by a ____ prior to each shift.
Competent Person
When using a turnbuckle what is NOT a safe practice?
Angle loading
According to ASME B30.26, the Horizontal Angle of Loading should not be less 30 degrees unless approved by which person?
Qualified Person
According to ASME B30.26, multiple slings or rigging hardware gathered in a link or ring shall not exceed what Included Angle?
120 degrees
When installing a wedge socket, it must be installed with the load line in a straight line from the:
Pin
When is it appropriate to use a pipe extension when securing or releasing a standard load binder?
NEVER
According to ASME B30.9, if the angle of choke is less than 30 degrees, the reduction in wire rope sling strength is reduced to what percentage?
49% (don’t confuse with Load Angle Factor)
When setting and releasing a Load Binder, what is the safest method?
Using an open hand
What do you NEVER use with a jack?
Cheater Bar
What are the Load Angle Factors?
- 90 degrees = 1
- 60 degrees = 1.155
- 45 degrees = 1.414
- 30 degrees = 2.0
What do the different “D’s” mean in Sling D/d ratio?
D = diameter of load
d = diameter of sling
What is the Sling D/d ratio for Alloy Chain Slings?
6/1
What is the Sling D/d ratio for Synthetic Rope Slings?
8/1
What end goes into the U-Bolt on a Wire Rope Clip?
Dead-End Side
What is the minimum sheave pitch diameter on Rigging Blocks?
6/1 (not to be confused with Load Blocks on Cranes)
What should be placed beneath a jack when using on unstable ground?
A Solid Base
When using a roller, when should a qualified person be consulted to determine the proper type and capacity of restraint system?
Rolling on an Incline (keyword Incline)
How much can a Wire Rope Diameter reduce by before being removed?
Reduction greater than 5%
For Welded Chains, what are the Chain Stretch Percentages?
- Hand Operated Hoist: 2.5%
- Powered Hoist: 1.5%
ASME B30.16
OSHA 1926.554
What is the Broken Wire rule for Wire Rope Slings?
“10/5” rule
- 10 randomly wires in one rope lay
- 5 broken wires in one strand in one rope lay
What are the reductions in wire diameter for Metal Mesh Slings?
- 25% for abrasion
- 15% for corrosion
“25/15” Rule
ASME B30.9
What is the reduction diameter for Synthetic Fiber Rope Slings?
10%
What is the choker percentage for ALL ROPES? What is for everything else?
- 75% for All Ropes
-80% for everything else (Synthetic Web/Chain Slings/Endless Round Sling)
What is the 0%, 5%, and 10% Rule for Hooks?
Not to exceed:
- 0% twist
- 5% throat opening/not more 1/4”
- 10% wear
What is ASME B30.3?
Tower Construction (Tower has 3 parts)
What is ASME B30.5?
Mobile Crane (Mobile Cranes have 5 parts)
What is ASME B30.9?
Slings
What is ASME B30.10?
Hooks
What is ASME B30.16?
Overhead Hoist
What is ASME B30.20?
Below the Hook Lifting Devices
What is ASME B30.26?
Rigging Hardware
What is ASME B30.30?
Rope
What is OSHA 1926.1402?
Ground Conditions (the lowest to the ground)
What is OSHA 1926.1403-1406?
Assembly and Disassembly
What is OSHA 1926.1407-1411?
Power Lines (7-11 needs power)
What is OSHA 1926.1412-1418?
Inspection, Safety, and Operation
What is OSHA 1926.1419-1422 & 1428?
Signals
What is OSHA 1926.1431?
Hoisting Personnel
What is OSHA 1926.1432-1441
Different Cranes
What is the Wire Rope Sling D/d Ratio for a Hand-Tucked splice?
15/1
What is the Wore Rope Sling D/d ratio for a Mechanical splice?
25/1