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These 10 free REI questions are organized by exam domain, so you can see how each part of the Rigging Equipment Inspector (REI) blueprint is tested. Reveal the answer and explanation under each question.
A rigging sketch shows a 4,000-lb machine, a 500-lb lifting beam and 500 lb of lower rigging suspended below two equal upper sling legs at 30° above horizontal. A 1,000-lb hook block is above those legs. Ignore sling self-weight and dynamics. For each leg, T = W/(2 sin θ), where W is the weight those legs support; sin 30° = 0.5. Which is the lowest available WLL per upper leg that meets this static load case?
Correct answer: C - 5,500 lb
During a construction contractor's program review, an inspector demonstrates the ability to recognize existing and predictable rigging hazards. The employer nevertheless requires the inspector to obtain a manager's permission before preventing use of hazardous equipment. What must change to satisfy OSHA's competent-person definition?
Correct answer: A - Grant the inspector authority to take prompt corrective measures.
The day shift inspected a construction site's rigging equipment before use and reported no defects. The evening shift will use the same equipment on the same calendar day. Under 29 CFR 1926.251(a)(1), when must the evening crew's inspection take place?
Correct answer: A - Before the equipment's first use on the evening shift.
Web slings are being considered for a lift in caustic mist. Final approval will depend on the manufacturer's assessment of the actual chemical concentration and temperature. Which material combination is not prohibited by 29 CFR 1910.184(i)(6) for this exposure?
Correct answer: D - Nylon webbing with steel end fittings.
Four months have passed since a Harrington CF Series Model CF4 hoist was last used. Its periodic inspection is not otherwise due, and there has been no modification or damage event. In addition to the shift preoperational check, which inspection criteria does the CF4 manual require before its return?
Correct answer: B - Frequent inspection criteria for a hoist returning from this idle period.
The inspection record for a wire-rope sling at a manufacturing plant shows seven broken wires within one rope lay; six are in the same strand. No other rejection condition was found. Under 29 CFR 1910.184(f)(5), how should this finding be evaluated?
Correct answer: B - Remove it because six breaks in one strand exceed the five-break limit.
The manufacturer has repaired and proof tested a metal-mesh sling. Its capacity marking is legible, its condition inspection is satisfactory, and an available written record linked to the sling identifies the repair date, work performed and repairing organization. No separate repair tag was attached. How does 29 CFR 1910.184(g)(8)(ii) treat this documentation?
Correct answer: A - Accept the linked written record; a separate repair tag is not required.
A permanent rigging connection will gather two compatible sling eyes in a Crosby shackle's bow. Capacity and geometry are satisfactory, but service movement may tend to rotate the pin. Select the assembly that follows Crosby's recommendation for this installation.
Correct answer: D - A bolt-type shackle with its specified pin, nut and cotter installed.
During a smooth attempted lift with a Harrington LB L5 lever hoist, an independent in-line load cell confirms that the applied force remains below the hoist's WLL, yet its optional overload slip clutch activates. The load is now safely supported independently. Which interpretation belongs in the inspection finding?
Correct answer: C - Clutch activation below WLL is abnormal and requires investigation of the hoist.
Following the specified liquid penetrant procedure, a qualified examiner reports no relevant indications on the clean, uncoated surface of a nonporous aluminum lifting component. How should the result be described in the examination record?
Correct answer: B - Within the examined areas, the procedure detected no relevant indications from discontinuities open to the surface.
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