Advanced Rigging Test Questions with Complete Answers Graded A+

  Determine if this statement is true or false . The two types of wire rope center core designs are fiber core and independent wire rope core . - Answer: True Determine if this statement is true or false . Grade 110/120 Improved Plow steel has the highest tensile strength of any type of wire rope . - Answer: False Determine if this statement is true or false . A 6 x 19 wire rope classification could have as many as 16 to 26 wires per strand . - Answer: True Determine if the following statement is true or false . When inspecting wire rope , interior broken wires and corrosion can be checked by magnetic particle testing - Answer: True What is the percentage gain in strength using an IWRC versus a fiber core wire rope ? - Answer: 7.5% What characteristic increases in a wire rope by using a rope with more strands and more wires in the strands ? - Answer: flexibility A regular lay wire rope has strands and wires in the strands that : - Answer: Are laid in opposite directions Due to its tendency to unwind , which wire rope should NOT be used on single part hoisting lines ? - Answer: Lang Lay Which wire rope classification is listed as non - rotating ? - Answer: 35 strand When a non - rotating rope is used in a wedge socket , care must be taken to prevent - Answer: Core slippage A rotation resistant wire rope may have a smaller Working Load Limit ( SWL ) than an equal size 6 x 37 IWRC because : - Answer: I WRC has a higher ultimate load (breaking strength) When hoisting personnel on a crane equipped with rotating resistant wire ropes , what is the Design ( safety ) Factor required by most safety standards ? - Answer: 10:1 Newer designs of wire rope with shaped wires and triangular strands are an attempt to prevent rope damage - Answer: Multiple layer, drums, improper, tensioning, cross, winding. Referring to the number of broken wires allowed in a wire rope , The " Rule of Thumb for determining replacement is - Answer: 3/6 Wire rope should be replaced if the wear in the outer strand wires exceeds : - Answer: 1/3 of the original diameter Corrosion of wire rope is usually caused from : - Answer: lack of lubrication Which product below is considered a suitable lubricant to use on a wire rope ? - Answer: light mineral oil To avoid kinking wire rope when spooling it onto a drum from the shipping reel , the operator should always - Answer: allow the reel to rotate freely What is the Rule of Thumb formula to find the Ultimate Load breaking strength ) of an IWRC wire ropes? - Answer: D^2 x 42 When the Ultimate Load ( breaking strength ) of a wire rope is divided by a safety ( design ) factor , the result is called the: - Answer: Working load limit What happens when a wire rope is bent around a sheave or a hook ? - Answer: nominal strength is reduced A 1 inch wire rope eye sling ( no thimble ) lifting a load with a 1 inch shackle will be approximately how efficient ? - Answer: 50% Referring to slings , the terms " Rated Capacity " or " Working Load Limit " replaces the old terminology of : - Answer: Safe Working Load