Per OSHA's general critical-lift triggers cited by NCCCO, which lift parameter alone is MOST likely to require a written critical-lift plan?
Nccco Rigger Level 2 Critical Lift Planning
Question · Easy
A symmetrical rectangular load weighs 20,000 lb and is lifted by a 4-leg bridle. For capacity calculations per ASME B30.9 guidance, how many legs should the rigger assume share the load?
Nccco Rigger Level 2 Engineered Rigging Calculations
Question · Hard
Certification and Exam Preparation
1.1 Current Exam, Eligibility and Scheduling
Study guide
Two cranes lift one load in a tandem (multi-crane) lift. A common engineered de-rating practice limits each crane to what percentage of its single-crane rated capacity?
Nccco Rigger Level 2 Multi Crane And Complex Lifts
Question · Medium
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A 10,000-lb load is supported by a 2-leg bridle with each leg at 60 degrees from horizontal. What is the tension in EACH sling leg?
A wire rope sling is bent around a load with a D/d ratio of 1:1 (sling diameter equals the bend diameter). Compared with its straight-pull rated capacity, the sling's working capacity drops to approximately:
On a personnel-hoisting lift under OSHA 1926.1431, what is required BEFORE the platform carries personnel for the first time at the site?
Nccco Rigger Level 2 Personnel Hoisting
1.2 Practical Tasks and Examination-Specific Rules
Per ASME B30.20, an engineered below-the-hook lifting device must be proof tested by the manufacturer to what percentage of its rated load?
Nccco Rigger Level 2 Below The Hook Devices
Which lifting device is BEST described as a compression member with slings angled down from each end to the load?
A non-symmetrical load is suspected to have its center of gravity (CG) significantly off-center. The MOST reliable Level II response is to:
Which document is the central deliverable that defines a critical lift before the crane is dispatched to position?
1.3 Study Method, References and Recertification
Which OSHA standard specifically governs the use of a crane to hoist personnel on a suspended platform?
A 12,000-lb load is held by a 2-leg bridle with each leg at 30 degrees from horizontal. The tension in each leg is approximately:
The CG of a beam that weighs 10,000 lb sits 4 ft from one end. Total beam length is 12 ft. Approximately how much load does the sling at the end closer to the CG carry, assuming both vertical slings?
Which environmental condition typically REQUIRES the lift director to stop or postpone a critical lift, even before reaching the operator's chart wind limit?
Nccco Rigger Level 2 Environmental Conditions
Identify and Measure the Load
2.1 Load Identity, Dimensions and Units
A blind lift is one in which:
Nccco Rigger Level 2 Communication And Signaling
Per OSHA 1926.1404 (and the supporting NCCCO role definitions), the LIFT DIRECTOR is responsible for:
Nccco Rigger Level 2 Roles And Responsibilities
Outrigger pad pressure on soft ground is being evaluated. The crane's maximum outrigger reaction is 80,000 lb and the engineer states soil bearing capacity is 4,000 psf. The minimum mat area needed for that outrigger is approximately:
Nccco Rigger Level 2 Crane Setup And Ground Bearing
Out-of-level setup of a mobile crane typically reduces the chart capacity. Even a small grade can require:
2.2 Load Weight, Density and Complete Inventories
The PRIMARY purpose of a tag line during a lift is to:
Nccco Rigger Level 2 Execution And Load Control
A hydraulic gantry system is BEST used when:
Which of the following BEST defines a 'qualified person' as it is used in critical-lift planning?
What is the PRIMARY reason a personnel platform must include a secondary safety system beyond the load line?
2.3 Composition, Structural Integrity and Special Handling
An asymmetric load weighs 8,000 lb. Its CG is unknown. The SAFEST Level II step before fully lifting is to:
ASME B30.9 wire rope sling inspection requires a sling to be removed from service when the running rope shows how many randomly distributed broken wires in one rope lay?
Nccco Rigger Level 2 Rigging Inspection
Per ASME B30.9, a synthetic web sling must be removed from service when it has:
On a critical lift the operator's radio fails mid-pick. The PRIMARY backup per standard practice is to:
Center of Gravity and Support Geometry
3.1 Center of Gravity and Suspended Stability
For a load suspended over an occupied area, the BEST control is to:
A Self-Propelled Modular Transporter (SPMT) is BEST suited for:
What is the MAIN function of an anti-two-block device on a crane used for a personnel lift?
A 4-leg bridle is set with all legs at 45 degrees from horizontal carrying a 16,000-lb load. Per ASME B30.9 (count 3 legs), each effective leg carries approximately:
3.2 Attachment Points and Complete Force Paths
Which ASME standard governs rigging hardware such as shackles, eyebolts, hooks (separate from B30.10), wire rope clips, turnbuckles, and links?
Nccco Rigger Level 2 Standards And Regulations
When using shouldered eyebolts at an angle, the eyebolt's rated capacity:
Nccco Rigger Level 2 Rigging Hardware
Per ASME B30.26, when assembling wire rope clips on a saddle-and-U-bolt configuration, the U-bolt must be installed on the:
A 5/8-inch wire rope clip table typically requires which minimum number of clips for proper termination, and what is the minimum spacing between clips?
3.3 Final Position, Landing Supports and Derigging Access
A pre-lift meeting on a critical lift MUST include, at minimum:
What is the MAIN structural difference between a spreader bar and a lifting beam?
A vertical hitch on a synthetic web sling rated 10,000 lb in vertical configuration carries a 10,000-lb load. Working load remains 10,000 lb only if:
Per ASME B30.9, a choker hitch's rated capacity is typically reduced compared to a vertical hitch by approximately:
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