National Commission for the
Certification of Crane Operators
Committed to Quality, Integrity, and Fairness in Testing since 1995

CERTIFICATIONS

Telecommunications Tower Rigger Level I

TTR-I Written Exam - Exam Outline

The CCO Certified Telecommunications Tower Rigger Level I Written Examination tests the following knowledge areas relating to rigging:

Domain: Scope of the Rigging Activity
(Approximately 15% of the Test)

Domain: Technical Knowledge
(Approximately 13% of the Test)

Domain: Inspection
(Approximately 30% of the Test)

Domain: Execution of Rigging Activity
(Approximately 42% of the Test)

DOMAIN: Scope of the Rigging Activity

(Approximately 15% of the Test)

  • Identifying hazards associated with the load’s travel path
  • Know how to identify load characteristics
    • Know how to verify the gross load weight
    • Know how to identify load attachment points
  • Identify rigging structure attachment points
    • Direct structure (monopole)
    • Panel points (lattice tower)
    • Specialized (e.g., water, tower, rooftop, billboard, etc.)
  • Recognize special handling requirements
  • Recognize unsafe rigging practices
    • Pinch points
    • Sling protection
    • Load stability
    • Shock load
    • Side load
    • Electrical hazards
    • Tag forces
    • Excessive rigging angles
  • Know how to identify hazards
  • Know how to communicate a hazard identification 

DOMAIN: Technical Knowledge

(Approximately 13% of the Test)

  • Understand and apply ASME non-inspection requirements
    • B30.9: Slings
    • B30.10: Hooks
    • B30.20: Below-the-Hook Lifting Devices
    • B30.21: Lever Hoist
    • B30.26: Rigging Hardware
    • B30.30: Ropes
  • Understand and apply OSHA non-inspection regulations
    • 1910.184: Materials Handling and Storage
    • 1926.251: Rigging Equipment for Material Handling
    • 1926.1431: Hoisting Personnel
  • Understand and apply ANSI/ASSP standards
    • A10.48: Safety Practices of Communication Structures
    • A10.42: Safety Requirements for Rigging

DOMAIN: Inspection

(Approximately 30% of the Test)

  • Know ASME inspection requirements
    • B30.9: Slings
    • B30.10: Hooks
    • B30.20: Below-the-Hook Lifting Devices
    • B30.21: Lever Hoist
    • B30.26: Rigging Hardware
    • B30.30: Ropes
  • Know OSHA frequent inspection regulations
    • 1910.184: Materials Handling and Storage
    • 1926.251: Rigging Equipment for Material Handling
    • 1926.1431: Hoisting Personnel
  • Understand and apply ANSI/ASSP standards
    • A10.48: Safety Practices of Communication Structures
    • A10.42: Safety Requirements for Rigging

DOMAIN: Execution of Rigging Activity

(Approximately 42% of the Test)

  • Know how to select and use slings (e.g., synthetic, alloy chain, wire rope)
  • Awareness of tag line use
  • Awareness of load line selection and use (e.g., synthetic, wire rope)
  • Know how to use the hoist
    • Capstan
    • Base mounted drum
  • Know how to select and use rigging hardware
    • Shackles
    • Links, rings, and swivels
    • Rigging blocks
    • Hooks
    • Lever Hoists
    • Compression hardware (e.g., wedge sockets, wire rope clips)
    • Beam clamps
    • Sling protection/Wear sleeves
    • Eyebolts
    • Swivel hoist rings
    • Turnbuckles
  • Know how to use below-the-hook lifting devices
    • Structural (spreader bar)
  • Know post-load movement activities
    • Know how to secure the load
    • Know how to disconnect the rigging
    • Know how to stow the gear