NCCCO Certification of Crane Operators: Rigging 1 Slings Exam Review, Exams of Mechanical Engineering

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NCCCO Certification of Crane Operators

Rigging 1 Slings Exam Review Questions and

Answers 100% Pass | Graded A+

David Mungai [Date] [Course title]

NCCCO Certification of Crane Operators

Rigging 1 Slings Exam Review

Questions and Answers 100% Pass |

Graded A+

Type of sling - Answer>> Alloy Steel chain Type of sling - Answer>> Metal mesh Type of sling - Answer>> Synthetic fiber rope Type of sling - Answer>> Synthetic web Type of sling - Answer>> Wire rope Type of sling - Answer>> Synthetic round Type of hitch - Answer>> Straight line Type of hitch - Answer>> Choker Type of hitch - Answer>> Basket Design factor for alloy chain - Answer>> 4 Design factor for Wire Rope, Metal mesh, Synthetic Fiber rope, Synthetic web, Synthetic round - Answer>> 5 Alloy chain identification requirements under OSHA - Answer>> Size Grade Rated capacity Manufacturer name

Synthetic fiber rope sling identification requirements under ASME

• Answer>> Name of manufacturer/if repaired, entity that repaired it Manufacturer code/ Stock number Rated load for hitch/ angle based upon Type of material Number of legs if more then one Synthetic web sling identification requirements under OSHA - Answer>> Manufacturer name Rated capacity for each hitch Type of synthetic material Synthetic web sling identification requirements under ASME - Answer>> Manufacturer name/entity if repaired Stock number Rated load for hitch/angle based upon Type of synthetic material Number of legs if more than one Synthetic round sling identification requirements under ASME - Answer>> Manufacturer name/ entity that repaired it Stock number Rated load for hitch type and angle it was based upon Core material Cover material if different from core material Number of legs if more than one Sling identification must be maintained by whole - Answer>> User

Replacement sling identification shall be completed by _________. Additional proof testing is NOT required - Answer>> Manufacturer or qualified person Inspection of slings shall be done by - Answer>> A competent person Frequent inspection - Answer>> A visual inspection that requires no records According to OSHA how frequently is a frequent inspection required - Answer>> Before each day/shift prior to use According to ASME frequent inspections shall be conducted - Answer>> Each day or shift of use Periodic inspection - Answer>> Complete inspection of rigging equipment. Records from previous periodic inspections shall be kept as well as current Periodic inspections shall be performed at least - Answer>> Annually Periodic inspections should be based on - Answer>> Sling usage Severity of service conditions Load handling activities Experience gained by use of sling in similar situations Alloy chain removal criteria - Answer>> Missing or illegible id Excessive wear, nicks, or gouges Stretched chain links or components Cracks or breaks Distortion

Broken weld Broken brazed joint on edge of sling Broken wire in any part of the mesh Reduction in wire diameter of 25% due to abrasion or 15% due to corrosion Lack of flexibility due to distortion of the mesh Distortion of choker fitting where depth of slot is increased by 10% Distortion of either end fitting so the width of the eye opening is decreased by more than 10% 15% reduction of the original cross section around the hook opening of the end fitting Visible distortion of either end fitting out of its plane End fitting cracked or broken Doesn't have free articulation Pitied, corroded, cracked, bent, twisted, gouged, or broken fittings Visible damage Synthetic fiber rope sling removal criteria - Answer>> Missing or illegible id Damaged are that reduces rope diameter by 10% Uniform breakage of the fiber along the rope Fused, melted, or broken inside fiber at 10% of a strand or entire rope Discoloration or rotting Powdered fiber strands Broken or cut fibers Brittle of stiff areas Excessive dirt on interior part Foreign matter that has permeated rope Kinks or distortion Charred,hard,or melted areas affecting more than 10% Poor condition of components Synthetic web/round sling removal criteria - Answer>> Missing or illegible id

Acid or caustic burns Melting or charring of any part of the sling Holes,tears, cuts, or snags Broken or worn stitching in load bearing splices Excessive abrasive wear Knots in any part Discoloration and brittle Fittings that are pitted, corroded, cracked, bent, twisted Alloy chain sling minimum temperature - Answer>> - Alloy chain sling maximum temperature - Answer>> 400 Wire rope slings should not be stored in - Answer>> Areas subject to damage, corrosion, moisture, extreme temps, or kinking Metal mesh slings should not exceed temperatures - Answer>> Above 550 or below - Before using metal mesh slings in a chemically active environment - Answer>> Consult a qualified person Polyester and fiber rope slings should not exceed temperatures - Answer>> Above 194 or below - Before using synthetic fiber rope slings in a chemically active environment - Answer>> Consult a qualified person Ultraviolet light or sunlight does what to synthetic fiber rope slings when exposed - Answer>> It degrades the strength of it Do not store nylon ropes in areas that - Answer>> Can cause rust

When using a basket hitch the legs of the sling - Answer>> Should support the load from the sides above the center of gravity Slings in contact with edges corners or protrusions should - Answer>> Be protected with a material of sufficient strength A choker hitch angle should never be less the. - Answer>> 120° without reducing the rated load Loads should not be - Answer>> Rested in the sling Slings should only be adjusted only when - Answer>> Approved by manufacturer or qualified person Shock loading should be done when - Answer>> Never Always avoid doing what to slings - Answer>> Twist or kink them In a choker hitch the choke point should only be - Answer>> On the sling body not the splice or fitting When using multiple basket or choker hitches - Answer>> Balance the load to prevent the sling from sliding/slipping Slings should not be at ______ horizontal angle - Answer>> 30 Grade ______ chain shall be used for sling fabrication - Answer>> Grade 80 or 100