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NCCCO Certification of Crane Operators
Mobile Crane Operator Written Exam - Core
Exam Outline
David Mungai [Date] [Course title]
NCCCO Certification of Crane Operators
Mobile Crane Operator Written Exam -
Core Exam Outline
Mobile Crane Operator
Certification Overview | Written Exam | Practical Exam | Exam Fees | Recertification | Testing in Spanish
Written Exam - Core Exam Outline
Core Exam Outline | Specialty Exams Outline |
Reference Materials | Load Charts The Core Examination portion of the CCO certification program tests the following knowledge areas relating to the operation of mobile cranes: Domain 1: Site (Approximately 20% of the test) Domain 2: Operations (Approximately 26% of the test) Domain 3: Technical Knowledge (Approximately 28% of the test) Domain 4: Load Charts (Approximately 26% of the test)
DOMAIN 1: SITE
(Approximately 20% of the test)
- Understand elements that affect ground stability: a. Below surface (e.g., voids, tanks, loose fill) b. On surface (e.g., retaining walls, slopes, excavations, depressions) c. Boom position
- Know the proper use of supporting materials (e.g., mats, blocking/cribbing).
- Know electric power line hazards during assembly/disassembly.
- Know the requirements to travel without load.
- Know how to identify and evaluate hazards concerning: a. Access to job site b. In-transit clearances c. Pinch/crush points d. Personnel
- Know the responsibilities of the controlling entity concerning site conditions.
- Know how to review lift requirements with site supervision.
DOMAIN 2: OPERATIONS
(Approximately 26% of the test)
- Know how to inspect the crane for unsafe conditions.
- Know personnel safety requirements during crane inspections.
- Know how to level the crane.
- Know how to obtain dimensions, weight, and center of gravity of the load.
- Know how to verify the radius.
- Know electric power line hazards during operations.
- Know wire rope: a. Reeving b. Parts of line
- Know types of signals:
a. Hand signals b. Voice/radio signals c. Audible signals d. New or non-standard signals
- Know the requirements for: a. Multi-crane lifts b. Suspended personnel platforms c. Duty cycle operations d. Barge operations e. Multi-drum operations
- Know the effects of lifting loads from beneath the surface of the water.
- Know the requirements and procedures for when load is not in full view of the operator.
- Know the requirements of tag lines.
- Know how to react to: a. Block and line twisting b. Personnel in fall zone
- Know the use/function of the following operator aids: a. Load moment indicator, load moment limiter, load weighing devices b. Anti–two block devices c. Boom angle indicator
d. Wind indicator e. Drum rotation indicators f. Radius indicators
- Know alternative operating procedures when operator aids malfunction.
- Know the use/function of the following safety devices: a. Horn b. Level indicator
- Know emergency procedures for: a. Electric power line contact b. Loss of stability c. Control malfunction d. Carrier or travel malfunction e. Two-blocking f. Overloading g. Fires
- Know the effects of dynamic loading from: a. Shock loading b. Moving loads
- Know the effect of side loading.
- Know the effects of operating in various weather conditions (e.g., wind, temperature, wave action)
- Understand the condition where backward stability presents limitations.
- Know how to use the manufacturer-approved attachments and their effect on the crane’s operation.
- Know operator’s authority to stop operations.
- Know how to shut down and secure the crane when leaving it unattended.
DOMAIN 3: TECHNICAL KNOWLEDGE
(Approximately 28% of the test)
- Know current federal regulations and industry standards, including but not limited to ASME B30.5, B30.10, OSHA 1910.180, 1926 Subpart CC.
- Know basic crane terminology and definitions.
- Know functions and limitations of cranes and attachments.
- Know the inspection requirements for: a. Shift inspections b. Monthly inspections c. Annual inspections d. Notifying supervision of inspection deficiencies
- Know basic procedures for rigging devices and their use, such as slings, softeners, lifting beams, and shackles.
- Know basic procedures for termination of wire rope.
- Know the proper use of hook blocks and overhaul balls.
- Know wire rope: a. Types and designations of wire rope and their application b. Replacement criteria and inspection procedures of running ropes c. Maintenance and lubrication
- Know relationship between line pull and safe working load of running ropes.
- Know protective measures against electrical hazards and their limitations.
- Know the significance of the instruments and gauge readings.
- Know requirements for fall protection.
- Know requirements for access and egress of the crane.
DOMAIN 4: LOAD CHARTS
(Approximately 26% of the test)
- Know the terminology necessary to use load charts.
- Demonstrate basic math skills without the use of a calculator.
- Know how to ensure that the load chart is the appropriate chart for the machine in its particular application.
- Know how to use load charts, including:
a. The difference between capacity limited by stability and factors other than stability b. The range diagram c. The work area chart d. “Parts-of-line” information