NCCER Rigger case studies
NCCER Rigger · Put your knowledge to work in context.
The NCCER Rigger credential sits within NCCER's Crane, Rigger & Signal Person Certifications family, one of the credential areas NCCER lists alongside its industry-recognized credentials and construction site safety programs. NCCER describes itself as a 501(c)(3) nonprofit education foundation created in 1996 that provides industry-recognized credentials through accredited training and assessment programs, so rigger candidates typically enroll through an NCCER-accredited training or assessment provider rather than registering with NCCER directly. The credential is aimed at craft professionals who prepare and inspect loads and rigging for crane lifts and who need to demonstrate that knowledge to employers, contractors, and site safety programs. Preparation should be built around the four knowledge areas this study set covers: rigging and crane safety fundamentals; rigging hardware and slings; load weight, center of gravity, and sling tension; and rigging hitches, knots, and lift planning. The NCCER Rigger case studies are 5 cases and about 2,396 words.
1Rigging a Load Near a Live Conductor
A crew must set a 4,200 lb pre-cast panel on a building's third floor. The crane's boom will swing within 18 ft of an energized 13.8 kV overhead line.
525 words, about 3 min2Selecting Slings for an Off-Center Load
A 6,000 lb steel tank must be lifted with a two-leg bridle. The tank's center of gravity is 2 ft from the left lifting lug and 4 ft from the right lifting lug, so the load is not centered.
525 words, about 3 min3Estimating Load Weight from a Drawing
A rigger is asked to lift a steel plate assembly. The drawing shows a 4 ft x 8 ft x 1/2-inch steel plate with two 6-inch x 6-inch x 1/2-inch stiffener plates welded to it.
464 words, about 2 min4Choosing a Hitch for a Long Pipe
A 20 ft length of 12-inch diameter steel pipe, weighing 1,200 lb, must be lifted from a truck bed and set into a trench. The pipe has no lifting lugs.
437 words, about 2 min5Planning a Lift with a Blind Landing
A rigger must lift a 2,500 lb HVAC unit onto a roof. The crane operator cannot see the roof landing area from the cab.
445 words, about 2 min