RI Hoisting Engineer flashcards
RI Hoisting Engineer · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Shift crane inspection
- Visual and functional examination performed before each shift covering controls, wire rope, hooks, safety devices, and fluid levels; deficiencies must be corrected before the crane is used.
- Anti two-block device
- Safety device that stops the hoist when the load block approaches the boom tip sheave, preventing wire rope damage, rope slack, and loss of the load.
- Broken wire removal criteria
- Running wire rope is removed from service at six randomly distributed broken wires in one lay, or three broken wires in one strand of one lay.
- Load moment indicator
- Instrument that computes load weight multiplied by radius and warns or stops operation before the crane exceeds its rated load moment or capacity.
- Annual crane inspection
- Comprehensive, documented inspection of the entire crane required at least yearly, covering structural members, braking systems, and safety devices beyond shift and monthly checks.
- Power line minimum clearance
- For energized lines, keep at least 20 feet away up to 350 kV and 50 feet above 350 kV unless the utility confirms the line is de-energized and grounded.
- Hoist brake holding requirement
- Hoisting brakes must hold at least 125 percent of the rated load and must be tested after any repair or adjustment before the crane returns to service.
- Crane cab fire extinguisher
- A fire extinguisher rated at least 5 BC must be accessible in the cab or on the crane at all times while the equipment is in operation.
- Sling angle factor
- Multiplier applied to the load carried per leg: about 1.155 at 60 degrees, 1.414 at 45 degrees, and 2.0 at 30 degrees measured from horizontal.
- Bridle sling leg tension
- Per-leg tension equals half the total load divided by the sine of the horizontal angle; steeper legs carry less tension than shallow legs.
- Net crane capacity
- Chart capacity minus the weight of the hook block or ball, jib, slings, shackles, spreader beam, and all other below-the-hook lifting attachments.
- Wire rope sling design factor
- Wire rope slings are rated at a 5 to 1 ratio, so the working load limit is one fifth of the sling's published breaking strength.
- Chain sling design factor
- Chain slings use a 4 to 1 design factor, so working load limit equals breaking strength divided by four, reduced further for choke and basket hitches.
- Critical lift criteria
- A lift exceeding 75 percent of chart capacity, using multiple cranes, lifting personnel, or traveling over occupied areas or hazardous materials.
- Load moment
- The product of load weight and radius measured from the crane's rotation center; it must never exceed the crane's rated load moment.
- Choker hitch capacity loss
- A choker hitch reduces sling capacity to roughly 75 to 80 percent of its vertical rating because the sling is compressed against itself at the choke.
- Emergency stop hand signal
- Arms extended horizontally with palms down, moved back and forth; any person on the site may give this signal to halt crane operations immediately.
- Swing radius barricade
- A barrier enclosing the rotating superstructure and counterweight that keeps workers out of the tail-swing area where they could be struck or crushed.
- Personnel platform lifting limit
- When lifting personnel in an approved platform, the total load must not exceed 50 percent of the crane's rated capacity at that radius.
- Ground bearing pressure
- The pressure outriggers or tracks impose on soil; mats and blocking spread the load so pressure stays below the soil's bearing capacity.
- Power line contact response
- The operator stays in the cab and warns others away; if escape is required, jump clear without touching the machine and shuffle away.
- Pre lift meeting
- Briefing of the operator, riggers, signal person, and crew that covers the lift plan, roles, hazards, and communication method before a critical lift.
- Designated signal person
- One qualified individual directing the operator by standard hand, voice, or radio signals; the operator obeys only that person except for emergency stops.
- Wind speed lift limit
- The manufacturer's maximum wind speed for lifting; operations stop when wind exceeds it or when the load's sail area makes the load unmanageable.
- Rhode Island hoisting license
- Credential issued by the Rhode Island Department of Labor and Training under RIGL chapter 28-26 authorizing operation of specified classes of hoisting equipment.
- RIDLT licensing authority
- The Rhode Island Department of Labor and Training administers hoisting engineer examinations, issues licenses, and enforces licensing requirements throughout the state.
- Unlicensed operation penalty
- Operating hoisting equipment in Rhode Island without a valid license is a violation subject to fines and enforcement action against the operator and employer.
- License class endorsement
- The class shown on a Rhode Island hoisting license limits the holder to specific equipment types and capacities; operating outside that scope is a violation.
- Carry license on site
- A hoisting engineer must keep the Rhode Island license available for inspection by the Department of Labor and Training or law enforcement while operating.
- License renewal requirement
- Rhode Island hoisting licenses expire and must be renewed through RIDLT; operating after the expiration date is treated as unlicensed operation.
- OSHA operator certification
- Federal crane rules enforced in Rhode Island require operators to be certified by an accredited body for the crane type they operate.
- Rhode Island Dig Safe call
- State law requires calling 811 so underground utilities are marked before excavating or placing outriggers, anchors, and mats at a job site.