MA Crane Operator case studies
MA Crane Operator · Put your knowledge to work in context.
The Massachusetts Hoisting Engineer license is the state credential required to operate hoisting machinery - cranes, excavators used for lifting, bucket trucks, and similar equipment - in Massachusetts. It is issued by the Commonwealth through its Division of Occupational Licensure, and applicants select a license class and equipment category at the time they apply. The MA Crane Operator case studies are 5 cases and about 4,111 words.
1The 82% Pick on Fill Beside an Open Trench
A 60-ton rough-terrain crane is set on fully extended outriggers with 4 ft x 4 ft composite mats, on compacted gravel fill. The pick is a precast concrete vault weighing 12,400 lb; slings, shackles, and a spreader beam add 340 lb.
745 words, about 4 min2Four-Leg Choker on an Off-Center Skid
A mechanical contractor is lifting a skid-mounted pump weighing 9,600 lb with a 4-leg chain sling: 5/16 in. Grade 80, each leg rated 4,500 lb in a single vertical hitch, fitted with 3/4 in.
760 words, about 4 min3Out-of-Level on a Culvert, Lifting Blind Over a Parapet
A 28-ton truck-mounted boom crane is set in an asphalt parking lot to place a 3,800 lb rooftop unit on a two-story building. With outriggers fully extended the required radius is 46 ft, where the chart shows 6,900 lb; rigging adds 250 lb.
863 words, about 4 min4Working Beside 13.8 kV With a Laborer on the Tagline
A 45-ton telescopic-boom all-terrain crane with 60 ft of main boom is working beside a three-phase, open-wire distribution line on wooden poles. The utility's e-mail says the line "should be 13.8 kV." The contractor's plan calls for 12 ft of clearance between the boom and load and the conductors at the closest point of the swing, with a laborer in a hard hat holding a nylon tagline on a 5,200 lb, 40 ft steel beam.
889 words, about 4 min5Who May Run It: License, Certification, and Qualifications
A Massachusetts excavation and utility contractor wins a job setting precast manhole bases and cones. The firm owns a 40-ton telescopic-boom truck crane and wants its own employee to run it.
854 words, about 4 min