Examination Topic
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1. PLANNING AND ENGINEERING
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A. FORMULAS AND FORCES
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1. Calculate conversions: SI (metric) - imperial (e.g. length, weight)
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2. Apply mathematical formulas, including:
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a. Algebra
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b. Geometry
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c. Trigonometry
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3. Apply general principles of forces, including:
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a. Force / weight
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b. Vectors
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c. Two components of force
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d. Point load
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e. Uniformly distributed load
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f. Indeterminate load
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g. Static load
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h. Dynamic load
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i. Shock load
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j. Environmental (e.g. wind, rain, snow, seismic)
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k. Tilt a 2-point object
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4. Apply general principles of rigging, including:
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a. Breaking strength
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b. Object weight
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C. Safety Issues
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5. Calculate sling length and forces, including:
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a. Single point connection
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b. 2-way bridle
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c. 3-way bridle
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d. High/low bridle
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e. Breast-lines
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f. H-bridle
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B. GENERAL PRINCIPLES OF RIGGING
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1. Apply general principles of rigging, including:
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a. Design factors
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b. Working load limit
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c. Efficiency (e.g. terminations, materials)
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d. Strength of Materials
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e. Service factor
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f. D/d ratio
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g. Fleet angle
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h. Center of gravity
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i. Load distribution (e.g. beam formulas, simple span)
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j. Indeterminate structures
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k. Fall protection and rescue design procedures
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l. Inspections
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m. Risk managment (e.g. OSHA/OHSA)
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C. DRAWING AND SCHEDULES
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1. Identify and resolve hazardous situations
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2. Conform rigging plot to building load limitations or obstructions
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3. Interpret facility plans (e.g. electrical, HVAC, structural steel)
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4. Interpret show plans
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5. Interpret hanging plot
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6. Generate hanging plot
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7. Perform layout - determine if adequate electrical power is available
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8. Verify assembly / integrity of objects to be lifted using stamped engineering drawings
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9. Verify assembly / integrity of objects to be lifted using allowable load charts
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2. INSTALLATION
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A. LAYOUT AND ELECTRICAL
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1. Layout, including:
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a. Assign tasks to riggers
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b. Mark floor/grid
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c. Determine safety guidelines (e.g. fall protection, rescue)
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d. Establish communication procedures
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2. General powered system requirements (e.g. dead haul, power assisted), including:
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a. Verify voltage
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b. Verify phasing
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c. Verify electrical connections
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d.Determine electrical system capacity
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B. RIGGING ATTACHMENTS
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1. Rigging attachments (e.g. blocks, sheaves, anchors, points), including:
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a. Assemble rigging attachment hardware (e.g. hitches, pipes, clamps, anchors)
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b. Inspect assembled hardware (e.g. wire rope, slings, terminations)
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c. Attach hardware to overhead structure (e.g. clamps, hitches, eyebolts, blocks)
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d. Attach objects (e.g. lights, sound, scenery)
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e. Install fall protection if required
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2. Attach assembled hardware to drop/hand line with:
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a. Knots (e.g. bowline, clove hitch, figure 8, sheet bend)
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b. Cable puller
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c. Carabiners
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3. Attach items to lifting device, including:
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a. Inanimate objects (e.g. truss, lights, sound, scenery, video)
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b. Taildowns
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c. Attachment hardware
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d. Anchoring locations
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e. Safety equipment backups
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C. OPERATIONS
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1. Lifting/lowering operations, including:
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a. Float objects
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b. Inspect entire system
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c. Perform pre-movement inspection of entire assembly
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d. Assign movement tasks (e.g. spotters, operators, communications)
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e. Establish lifting/lowering zone
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f. Perform bump check
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g. Level objects
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h. Raise/lower objects, periodically rechecking level
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i. Verify load distribution (e.g. load monitoring devices)
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j. Bring load to controlled stop
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k. Verify trim
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2. Confirm operation of control systems and hoists, including:
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a. Emergency stop mode
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b. System commissioning (e.g. start-up and shutdown procedures)
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3. Complete system, including:
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a. Verify travel path
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b. Verify trim heights
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c. Raise and lower loads
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3. MATERIALS AND EQUIPMENT
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A. PERSONNEL ACCESS EQUIPMENT
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1. Select what is needed for safe access, including:
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a. Personnel lifts
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b. Ladders
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c. Rope access
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d. Fall protection
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e. Personal protective gear
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B. RIGGING MATERIALS
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1. Determine rigging materials, including:
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a. Trusses
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a. Other support structures (e.g. beams, pipe, platform)
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b. Lifting devices (e.g. hoists, block and fall, lever hoist)
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c. Chain hoist
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d. Other lifting devices (e.g. drum hoist, block and fall, lever hoist)
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e. Hardware (e.g. shackles, slings, wire rope)
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f. Manufacturers recommendations
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g. Components of specific systems
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h. Track Systems (e.g. video, scenic, curtain)
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i. Properties of system design
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