Examination Content: Rigger - Theatre

To begin your preparation for the Theatre Rigging Certification Examination, you need to know what content areas are included in the actual examination. Information regarding the content of the examination is presented below and in the Candidate Handbook.

During the examination, you will be given a formula sheet to serve as an aid. You may preview those formulas here.

The content outlines provide a general overview of the examination and can give you specific study direction by revealing the relative importance of each category on the examination. The content for the examination is based on a job analysis performed by twelve subject matter experts under the guidance of a professional psychometric firm, along with input from hundreds of riggers across North America.

EXAMINATION TOPIC
Number of 
Questions
1. PLANNING AND LAYOUT
50
  A. FORMULAS AND FORCES
6
    1. Calculate conversions: SI (metric) - Imperial (e.g. length, weight)  
    2. Apply mathematical formulas, including:  
      a. Algebra  
      b. Geometry  
    3. Apply general principles of forces, including:  
      a. Force/weight  
      b. Vectors  
      c. Two components of force  
  B. PRINCIPLES
44
    1. Apply general principles of forces, including:  
      a. Point load  
      b. Uniformly distributed load  
      c. Static load  
      d. Dynamic load  
      e. Shock load  
    2. Apply general principles of rigging, including:  
      a. Breaking strength  
      b. Design factors  
      c. Working load limit  
      d. Efficiency (e.g. terminations, materials)  
      e. Motor service factor  
      f. Duty cycle (e.g. component's capacity to continuously perform, work:rest ratio)  
      g. D/d ratio  
      h. Fleet angle  
      i. Center of gravity  
      j. Load distribution (e.g. beam formulas, simple span)  
      k. Fall protection and rescue plan  
      l. Regulations and standards (e.g. OSHA, OHSA, ANSI)  
      m. Hazard Assessment, risk mitigation  
    3. Determine weight of objects  
    4. Drawings and schedules, including:  
      a. Conform rigging plot to building load limitations or obstructions  
      b. Interpret facility plans (e.g. electrical, HVAC, structural steel)  
      c. Interpret show plans  
      d. Interpret line set schedule (e.g. hanging plot)  
      e. Generate line set schedule  
    5. Calculate sling length and forces, including:  
      a. Single points (e.g. dead hangs)  
      b. Bridles  
      c. Breast-lines  
    6. Select means for access, including:  
      a. Personnel lifts  
      b. Ladders (e.g. wire rope, stepladders)  
      c. Scaffolding, work platforms, and catwalks  
      d. Fall protection  
      e. Personal protective gear  
      f. Rope access (e.g. ascenders/descenders, bosun's chairs)  
    7. Select rigging materials, including:  
      a. Support structures (e.g. truss, beams, pipe platform)  
      b. Lifting devices (e.g. hoists, block and fall)  
      c. Hardware (e.g. shackles, slings, wire rope)  
      d. Manufacturers recommendations  
2. IMPLEMENTATION AND MANAGEMENT
50
  A. MANAGEMENT
20
    1. Perform layout, including:  
      a. Assign tasks to riggers  
      b. Mark floor/grid  
      c. Determine safety guidelines (e.g. fall protection, rescue)  
      d. Establish communication procedures  
      e. Determine if adequate electrical powewr is available  
    2. Rigging attachments (e.g. blocks, sheaves, anchors, points), including:  
      a. Inspect assembled hardware (e.g. wire rope, slings, terminations)  
      b. Verify assembly/integrity of objects to be lifted using allowable load charts  
    3. Lifting/lowering operations, including:  
      a. Perform pre-movement inspection of entire assembly  
      b. Assign movement tasks (e.g. spotters, operators, communications)  
      c. Establish lifting/lowering zone  
      d. Verify trim and load sharing  
  B. IMPLEMENTATION
30
    1. Rigging components (e.g. blocks, sheaves, anchors, points), including:  
      a. Assemble rigging components (e.g. hitches, pipes, clamps, anchors)  
      b. Attach assembled components to drop lines/hauling lines using knots, caribiners, etc.  
      c. Attach rigging components to overhead structure (e.g. clamps, hitches, eyebolts, blocks)  
      d. Attach objects (e.g. lights, sound, scenery)  
      e. Attach lifting devices to objects to be lifted (e.g. wire rope, chain, rope, slings)  
      f. Install fall protection  
    2. Lifting and lowering operations, including:  
      a. Test motor operation (e.g. bump check)  
      b. Check orientaion/alignment of rigging components  
      c. Raise/lower objects, check load distribution  
      d. Check for obstructions (e.g. structural, permanent rigging, fire safety systems)  
    3. Perform risk/hazard assessment and apply mitigation procedures  
3. RIGGING SYSTEMS
50
  A. RIGGING SYSTEMS
    1. Rigging systems (e.g. counterweight, hemp system, powered and powered-assist, curtain and track, fire curtain)  
      a. Identify components of specific systems  
      b. Understand design properties of systems  
      c. Install and operate spotline set(s)  
      d. Identify attachment points (e.g. building structure, scenic elements)  
      e. Bring load to controlled stop  
      f. Identify inspection and maintenance requirements  
    2. Counterweight system, including:  
      a. Raise and lower loads  
      b. Attach, maintain, operate, remove balanced loads  
      c. Attach, maintain, operate, remove unbalanced loads  
      d. Secure loads  
      e. Mark trim heights  
      f. System alterations, including:  
        1. Lengthen and shorten battens  
        2. Marry arbors and battens  
        3. Re-position line sets  
        4. Breasting line sets  
        5. Determine load distribution  
        6.. Add/remove system components  
    3. Hemp system, including:  
      a. Raise and lower loads  
      b. Attach, maintain, operate, remove balanced loads  
      c. Attach, maintain, operate, remove unbalanced loads  
      d. Secure loads  
      e. Mark trim heights  
      f. Maintain trim (e.g. level and straight)  
    4. Powered systems (e.g. dead haul, power assisted, chain hoist, drum hoist, line shaft), including:  
      a. Identify system type  
      b. Identify system capacity  
      c. Identity system capabilities and controls  
      d. Identify power requirements  
      e. Raise and lower loads  
      f. Mark trim heights  
      g. Set limits  
      h. Confirm operation of emergency stop mode  
    5. Curtain/Track, including:  
      a. Determine track configuration  
      b. Determine how to hang track configuration (e.g. straight, bi-part)  
      c. Rig the curtain for operation (e.g. static, traveler, contour)  
      d. Recognize dynamic load situations  
      e. Operate system  
      f. Identify components of curtain/track system (e.g. carriers, hangers, splices, sheaves)  
    6. Fire curtainsystems, including:  
      a. Inspect system  
      b. Maintain system  
      c. Adhere to properties of the design  
      d. Recognize hazardous situations  
      e. Identify triggers (e.g. fusible links, cut the rope)  
      f. Identify clutch  
      g. Raise loads  
      h. Lower loads  
     
TOTAL QUESTIONS
150

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