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Ipt Chicago Rigging Exam Questions And Accurate Answers
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Ipt Chicago Rigging Exam Questions And Accurate AnswersThe two types of wire rope center core designs are fiber core and independent wire
rope core. T or F - Answer True
What is the percentage gain in strength using an IWRC versus 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
Grade 110/120 improved plow steel has the highest tensile strength of an type of wire
rope. T or F - Answer False
A regular lay wire rope has strands and wires in the strands that: - Answer are laid in
opposite directions
Due to tendency to unwind, which wire rope should NOT be used on single part hoisting
lines? - Answer Lang Lay
A 6x19 wire rope classification could have as many as 16 to 26 wires per strand. true or
false - Answer true
What classification of wire rope is listed as non-rotating? - Answer 35 strand
When a non-rotating rope is utilized 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 than an equal size
, 6x37 IWRC because: - Answer .
When hoisting personnel on a crane equipped with rotating resistant wire rope, 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 from: - Answer multiple drum layers,cross winding, improper
tension
all of the above
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 original diameter
When inspecting wire rope, interior broken wires and corrosion can be checked by
magnetic particle testing.T or F - Answer true
Corrosion of wire rope is usually caused from - Answer metal fatigue, broken wires, high
speed operation, all of above
Which product below is suitable lubricant to use on a wire rope? - Answer light mineral
oil
To avoid kinking wire rope when spooling it onto a drum from 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 rope? - Answer D2x45
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