RI Hoisting Engineer case studies
RI Hoisting Engineer · Put your knowledge to work in context.
The Rhode Island Hoisting Engineer license is a state credential administered through the Rhode Island Department of Labor and Training (DLT) for operators of hoisting equipment - cranes, excavators, digger derricks, and similar machinery used in construction and industrial work. The license exists to confirm that an operator can run equipment safely, inspect it before and during use, and work without endangering crews, the public, or property. The RI Hoisting Engineer case studies are 5 cases and about 4,332 words.
1The 32-Foot Pick That Grew Six Feet
Your 50-ton rough-terrain crane is set on fully extended outriggers in a level, paved yard. Main boom is 85 ft, no jib, and the boom is at a radius of 32 ft.
887 words, about 4 min2Seven Broken Wires, a Jumper Wire, and a Concrete Truck
At the pre-shift inspection of a 90-ton crawler crane you find: seven broken wires in one lay of the 6x19 IWRC hoist rope, distributed over about 6 in of rope; a birdcage and a dogleg about 4 ft behind the boom tip sheave; the anti-two-block horn has a jumper wire across its connector; and the load moment indicator shows an intermittent sensor fault that clears when you wiggle a boom cable. The rope was installed 14 months ago and the crane ran two full shifts yesterday.
913 words, about 5 min3Outriggers Over a Fresh Trench, Boom Near a 25 kV Line
You are setting a 9,500 lb air-handling unit on a one-story roof with a 40-ton truck crane. The only setup area is a gravel lot over a utility trench backfilled three weeks ago; site drawings show the trench is 6 ft wide and its near edge is 14 ft from where the crane's center of rotation will be.
973 words, about 5 min4Two-Leg Bridle With an Off-Center Center of Gravity
You are lifting a 9,000 lb machine base with a two-leg bridle of single-leg wire rope slings, each rated 6,000 lb vertical capacity in the configuration used. The pick points are not symmetric about the center of gravity: the load calculates to a 60/40 split between the legs.
694 words, about 3 min5The Afternoon the License Did Not Cover
You are the licensed hoisting engineer on a Warwick retail fit-out. On site: a 28-ton articulating boom truck that the rental company describes as 'just a truck crane'; an excavator the foreman wants to fit with a swivel hoist ring on the bucket to lift 1,800 lb jersey barriers; and a laborer who ran the boom truck for six years in Massachusetts and holds no Rhode Island credential.
865 words, about 4 min